What's New

• added 9-19-08
  • Micron-Scale Friction and Sliding Wear of Polycrystalline Silicon Thin Structural Films in Ambient Air by D.H. Alsem, M.T. Dugger, E.A. Stach, and R.O. Ritchie, Journal of Microelectromechanical Systems, in press, DOI: 10.1109/JMEMS.2008.927751.
    
  • Atomic-resolution imaging of the nanoscale origin of toughness in rare-earth doped SiC by A. M. Kueck, D. K. Kim, Q. M. Ramasse, L. C. De Jonghe, and R. O. Ritchie, Nano Letters, vol. 8, 2008, pp. 2935-2939.
    
• added 8-22-08
  • Measurement of the Toughness of bone: A Tutorial with Special Reference to Small Animal Studies by R.O. Ritchie, K.J. Koester, S. Ionova, W. Yao, N.E. Lane, J.W. Ager III, Bone, vol. 43, 2008.
    
• added 7-22-08
  • Effect of the Post-Release Sidewall Morphology on the Fracture and Fatigue Properties of Polycrystalline Silicon Structural Films by D. A. Alsem, B. L. Boyce, E. A. Stach, and R. O. Ritchie, Sensors and Actuators A, vol. 147, 2008, pp. 553-560.
    
  • Course Description and updated information for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2008.
• added 7-9-08
  • Comments on ‘Measurement of the Microstructural Fracture Toughness of Cortical Bone using Indentation Fracture' by J. J. Kruzic and R. O. Ritchie, Journal of Biomechanics, vol. 41, 2008, pp. 1379-1380.
    
• added 7-7-08
  • How Tough is Human Bone? In Situ Measurements on Realistically Short Cracks by K. J. Koester, J. W. Ager III, and R. O. Ritchie, Nature Materials, vol. 7, Aug. 2008.
    
• added 6-19-08
  • The Utility of R-Curves for Understanding Fracture Toughness-Strength Relations in Bridging Ceramics by J. J. Kruzic, R. L. Sadat, M. J. Hoffmann, R. M. Cannon, and R. O. Ritchie, Journal of the American Ceramic Society, vol. 91, 2008, pp. 1986-94.
    
• added 6-10-08
  • Adhesion between Biodegradable Polymers and Hydroxyapatite: Relevance to Synthetic Bone-Like Materials and Tissue Engineering Scaffolds by R. Neuendorf, E. Saiz, A. P. Tomsia, and R. O. Ritchie, Acta Biomaterialia, 2008.
    
• added 5-16-08
  • Aging and Fracture of Human Cortical Bone and Tooth Dentin by K. J. Koester, J. W. Ager III, and R. O. Ritchie, Journal of Materials, vol. 80, June 2008, pp. 33-38.
    
• added 5-14-08
  • Further Considerations on the High-Cycle Fatigue of Micron-Scale Polycrystalline Silicon by D. H. Alsem, C. L. Muhlstein, E. A. Stach, and R. O. Ritchie, Scripta Materialia, 2008.
    
• updated 5-14-08
  • Summer Group Meeting Schedule
    
• added 4-30-08
  • On the Toughening of Brittle Materials by Grain Bridging: Promoting Intergranular Fracture Through Grain Angle, Strength and Toughness by J. W. Foulk III, G. C. Johnson, P. A. Klein, and R. O. Ritchie, Journal of the Mechanics and Physics of Solids, vol. 56, 2008, pp. 2381-2400.
    
  • Effect of Microstructure on the Fatigue of Hot Rolled and Cold Drawn NiTi Shape Memory Alloys by K. Gall, J. Tyber, G. Wilkesanders, S. W. Robertson. R. O. Ritchie, and H. J. Maier, Materials Science and Engineering A, vol. 486, 2008, pp.389-403.
    
• added 2-23-08
  • In-Situ Bend Testing of Niobium-Reinforced Alumina Nanocomposites with and without Single-Walled Nanotubes by K. E. Thomson, D. Jiang, J. A. Lemberg, K. J. Koester, R. O. Ritchie, and A. K. Mukherjee, Materials Science and Engineering A, 2008.
    
• added 2-23-08
  • Fatigue of Dentin-Composite Interfaces with Four-Point Bend by M. Staninec, P. Kim, G. W. Marshall, R. O. Ritchie, and S. J. Marshall, Dental Materials, 2008.
    
• added 2-23-08
  • Effect of Microstructure on the Fatigue of Hot Rolled and Cold Drawn NiTi Shape Memory Alloys by K. Gall, J. Tyber, G. Wilkesanders, S. W. Robertson. R. O. Ritchie, and H. J. Maier, Materials Science and Engineering A, 2008.
    
• added 2-23-08
  • On the Toughening of Brittle Materials by Grain Bridging: Promoting Intergranular Fracture Through Grain Angle, Strength and Toughness by J. W. Foulk III, G. C. Johnson, P. A. Klein, and R. O. Ritchie, Journal of the Mechanics and Physics of Solids, 2008.
    
• added 1-7-08
  • Four-Point Bending Evaluation of Dentin-Composite Interfaces by M. Staninec, H. Nguyen, P. Kim, G. W. Marshall, R. O. Ritchie, and S. J. Marshall, Medicina Oral, Patología Oral Y Cirugía Bucal, vol. 13, 2008, pp. E81-84.
    
• added 1-7-08
  • The Effect of Aging on Crack-Growth Resistance and Toughening Mechanisms in Human Dentin by K. J. Koester, J. W. Ager III, and R. O. Ritchie, Biomaterials, (doi:10:1016/j.biomaterials.2007.12.008), 2008.
    
• added 12-19-07
  • A Fracture-Mechanics Based Approach to Fracture Control in Biomedical Devices Manufactured from Superelastic Nitinol Tube by S. W. Robertson and R. O. Ritchie, Journal of Biomedical Materials Research B: Applied Biomaterials, vol. 84B, Jan. 2008, pp. 26-33.
    
• added 11-19-07
  • Fatigue of Dentin-Composite Interfaces with Four-Point Bend by M. Staninec, P. Kim, G. W. Marshall, R. O. Ritchie, and S. J. Marshall, Dental Materials, published online (doi: 10.1016/j.dental.2007.09.008), 2007.
• added 10-30-07
  • The Aminobisphosphonate, Risedronate, Preserves Localized Mineral and Material Properties of Bone in the Presence of Glucocorticoids by G. Balooch, W. Yao, J. W. Ager III, M. Balooch, R. K. Nalla, A. E. Porter, A. Mastroianni, R. O. Ritchie, and N. E. Lane, Arthritis and Rheumatism, vol. 56, 2007, pp. 3726-3737.
• added 10-3-07
  • Of the Physics of Moisture-Induced Cracking in Metal-Glass (Copper/Silica) Interfaces by J. C. Card, R. M. Cannon, E. Saiz, A. P. Tomsia, and R. O. Ritchie, Journal of Applied Physics, vol. 102, 2007, pp. 053516-12.
• added 10-2-07
  • Atomic-Scale Observation of the Grain-Boundary Structure of Yb-Doped and Heat-Treated Silicon Nitride Ceramics by A. Ziegler, M. K. Cinibulk, C. Kisielowski, and R. O. Ritchie, Applied Physics Letters, vol. 91, Oct. 2007, pp. 141906.
• added 10-2-07
  • A Preservation Study of Carbon Nanotubes in Alumina-Based Nanocomposites via Raman Spectroscopy and Nuclear Magnetic Resonance by K. E. Thomson, D. Jiang, R. O. Ritchie, and A. K. Mukherjee, Applied Physics A, vol. 89, 2007, pp. 651-654.
• updated 9-27-07
  • Fatigue of Mineralized Tissues: Bone and Dentin by J. J. Kruzic and R. O. Ritchie, Journal of the Mechanical Behavior of Biomedical Materials, vol. 1 (1), Jan. 2007, pp. 3-17.
• added 9-9-07
  • Evolution of Crack-Tip Transformation Zones in Superelastic Nitinol Subjected to In Situ Fatigue: A Fracture Mechanics and Synchrotron X-Ray Micro-Diffraction Analysis by S. W. Robertson, A. Mehta, A. R. Pelton, and R. O. Ritchie, Acta Materialia, 2007.
• added 9-9-07
  • The Degree of Bone Mineralization is Maintained with Single Intravenous Bisphosphonates in Aged Estrogen Deficient Rats and is a Strong Predictor of Bone Strength by W. Yao, Z. Cheng, K. J. Koester, J. W. Ager III, M. Balooch, A. Pham, S. Chefo, C. Busse, R. O. Ritchie, and N. E. Lane, Bone, 2007.
• added 8-22-07
  • Stress-Corrosion Crack Growth of Si-Na-K-Mg-Ca-P-O Bioactive Glasses in Simulated Human Physiological Environment by D. R. Bloyer, J. M. McNaney, R. M. Cannon, E. Saiz, A. P. Tomsia, and R. O. Ritchie, Biomaterials, vol. 28, 2007, pp. 4901-4911.
• added 8-1-07
  • Course Description and updated information for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2007.
• added 6-13-07
  • Analysis of the Material Proporties of Chondrogenic Differentiated Adipose-Derived Adult Stromal Cells (ASC) Using an In Vitro Three-dimensional Micromass Culture System by Y. Xu, G. Balooch, R. O. Ritchie, M. Chiou, E. Bakerman, and M. T. Longaker, Biochemical and Biophysical Research Communications, vol. 359, July 2007, pp. 311-316.
• updated 6-13-07
  • Understanding the Deformation and Fracture of Nitinol using In Situ Synchrotron X-Ray Micro-Diffraction by A. Metha, X.-Y. Gong, V. Imbeni, A. R. Pelton, and R. O. Ritchie, Advanced Materials, 2007.
• updated 4-22-07
  • High-Cycle Fatigue of Nickel-Base Superalloy René 104 (ME3): Interaction of Microstructurally-Small Cracks with Grain Boundaries of Known Character by Y. Gao, J. S. Stölken, M. Kumar, and R. O. Ritchie, Acta Materialia, vol. 55, 2007, pp. 3155-3167.
• added 4-17-07
  • Understanding the Deformation and Fracture of Nitinol using In Situ Synchrotron X-Ray Micro-Diffraction by A. Metha, X.-Y. Gong, V. Imbeni, A. R. Pelton, and R. O. Ritchie, Advanced Materials, 2007.
    
• updated 4-11-07
  • A Micromechanical Basis for Partitioning the Evolution of Grain Bridging in Brittle Materials by J. W. Foulk III, R. M. Cannon, G. C. Johnson, P. A. Klein, and R. O. Ritchie, Journal of the Mechanics and Physics of Solids, vol. 55, 2007, pp. 719-743.
• added 3-31-07
  
• Elastic Constants and Tensile Properties of Al2O3 by Density Functional Calculations by R. Yu, X. F. Zhang, L. C. De Jonghe, and R. O. Ritchie, Physical Review B, vol. 75, 2007, pp. 104114.
• added 3-17-07
  
• High-Cycle Fatigue of Nickel-Base Superalloy René 104 (ME3): Interaction of Microstructurally-Small Cracks with Grain Boundaries of Known Character by Y. Gao, J. S. Stölken, M. Kumar, and R. O. Ritchie, Acta Materialia, vol. 55, 2007.
• added 2-26-07
  
• Mechanisms for Fatigue of Micron-Scale Silicon Structural Films by D. H. Alsem, O. N. Pierron, E. A. Stach, C. L. Muhlstein, and R. O. Ritchie, Advanced Engineering Materials, vol. 9, 2007, pp. 15-30.
• added 1-28-07
  
• Role of Alcohol on the Fracture Resistance of Teeth by R. K. Nalla, J. H. Kinney, A. P. Tomsia, and R. O. Ritchie, Journal of Dental Research, vol. 85, 2006, pp. 1022-1026.
• added 1-28-07
  
• An Electron  Microscopy Study of Wear in Polysilicon Microelectromechanical Systems by D. H. Alsem, E. A. Stach, M. T. Dugger, M. Enachescu, and R. O. Ritchie, Thin Solid Films, vol. 515, 2007, pp. 3259-3266.
• Spring Seminar & Group Meeting Schedule
• added 1-18-07
• Course Description and References for MSE C212 / ME C225 "Deformation and Fracture of Engineering Materials " Spring 2007.
  
• added 1-11-07
  • Fatigue Failure in Micron-Scale Polycrystalline Silicon Films: Influence of Environment and Surface Oxide Thickness by D. H. Alsem, R. Timmerman, B. L. Boyce, E. A. Stach, J. Th. M. De Hosson, and R. O. Ritchie, Journal of Applied Physics, vol. 101 (1), 2007, pp. 013515.
• added 1-9-07
  • A Micromechanical Basis for Partitioning the Evolution of Grain Bridging in Brittle Materials by J. W. Foulk III, R. M. Cannon, G. C. Johnson, P. A. Klein, and R. O. Ritchie, Journal of the Mechanics and Physics of Solids, doi: 10.1016/j.jmps.2006.10.009, 2007.
• added 12-11-06
  • Fatigue Example Problems  for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
    
• added 12-08-06
• Solutions to Homework #8 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 11-30-06
• Homework #8 and Solutions to Homework #7 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 11-21-06
  • On the Increasing Fagility of Human Teeth with Age: A Deep-UV Resonance Raman Study by J. W. Ager III, R. K. Nalla, G. Balooch, G. Kim, M. Pugach, S. Habelitz, G. W. Marshall, J. H. Kinney, and R. O. Ritchie, Journal of Bone and Mineral Research, vol. 21, Dec. 2006, pp. 1879-1887.
• added 11-16-06
  • Solutions to Midterm #2 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 11-14-06
• Homework #7 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 11-03-06
• Revised Solutions to Homework #4 , Revised Solutions to Homework #5 , Practice Midterm #2 with solutions and Solutions to Homework #6 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 10-31-06
• Practice Midterm #2 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 10-27-06
• Solutions to Homework #4 and Solutions to Homework #5 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 10-24-06
• Plane Stress vs Plane Strain for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• Homework #5 and Homework #6 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 10-23-06
• Kitagawa-Takahashi diagrams define the limiting conditions for cyclic fatigue failure in human dentin by J. J. Kruzic and R. O. Ritchie, Journal of Biomedical Materials Research A, vol. 79A, Dec. 2006.
• added 10-19-06
• Stress Intensities Handout for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006
• added 10-16-06
• Homework #3 Solutions for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006
• added 10-11-06
• In Vitro Fatigue-Crack Growth and Fracture Toughness Behavior of Thin-Walled Superelastic Nitinol Tube for Endovascular Stents: A Basis for Defining the Effects of Crack-Like Defects by S. W. Robertson and R. O. Ritchie, Biomaterials, vol. 28, 2007.
• added 10-10-06
• Resume updated for Scott Robertson .
• Resume updated for Aaron Kueck.
• Updated program description for NITI Fracture.
• Updated program description for SiC Fracture.
• added 10-08-06
• Resume for Sophi Ionova.
• Resume for Amanda Runciman.
• added 10-05-06
• Solutions to Midterm #1 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 10-03-06
• Homework #3 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 09-21-06
• Solutions to Practice Midterm #1 and Summary of Essentials for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 09-15-06
• Homework #1 Solutions and Practice Midterm #1 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 09-12-06
• Homework #2 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
• added 09-05-06
• Homework #1 for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
  
• added 08-30-06
• Opening Presentation on the Mechanical Behavior of Materials for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
  
• added 08-25-06
• New group members Holly Barth, Sophi Ionova, Amanda Runciman and Elizabeth Zimmermann.
• Resume for Aaron Kueck.
• Moved Yong Gao to Former Group Members section.
• Cortical Bone Fracture by R. O. Ritchie, J. H. Kinney, J. J. Kruzic, and R. K. Nalla, Wiley Encyclopedia of Biomedical Engineering, Metin Akay, ed., 2006
• added 08-09-06
• Course Description and updated information for CMSE 113 / CME 124 "Mechanical Behavior of Engineering Materials" Fall 2006.
  
• added 08-08-06
• Role of Microstructure in the Aging-Related Deterioration of the Toughness of Human Cortical Bone by R. K. Nalla. J. J. Kruzic, J. H. Kinney, M. Balooch, J. W. Ager, III, and R. O. Ritchie.  Replaces corrected proof.
• Fabrication and Mechanical Properties of PLA/HA Composites: A Study of In Vitro Degradation by J. Russias, E. Saiz, R. K. Nalla, K. Gryn, R. O. Ritchie, and A. P. Tomsia.  Replaces corrected proof.
  
• added 07-27-06
• Fracture, Aging and Disease in Bone by J. W. Ager, III, G. Balooch and R. O. Ritchie
• added 07-25-06
• Interfacial Structure in Silicon Nitride Sintered with Lanthanide Oxide  by C. W. Dwyer, A. Ziegler, N. Shibata, G. B. Winkelman, R. L. Satet, M. J. Hoffmann, M. K. Cinibulk, P. F. Becher, G. S. Painter, N. D. Browning, D. J. H. Cockayne, R. O. Ritchie, and S. J. Pennycook (corrected proof)
  
• added 06-07-06
• Re-Evaluating the Toughness of Human Cortical Bone by Q. D. Yang, B. N. Cox, R. K. Nalla, and R. O. Ritchie.  Replaces corrected proof.
• changed 05-25-06
• Joe Lemberg is the new webmaster.  All questions regarding the website can be directed to JALemberg@lbl.gov
  
• Rowland Morrell Cannon, Jr. passed away in Berkeley, California on April 21, 2006.
  
• added 03-31-06
  
• Canine Cranial Reconstruction Using Autologous Bone Marrow Stromal Cells by M. H. Mankani, S. A Kuznetsov, B. Shannon, R. K. Nalla, R. O. Ritchie, Y. Qin, P. G. Robey
• added 03-13-06
  
• An Electron  Microscopy Study of Wear in Polysilicon Microelectromechanical Systems by D. H. Alsem, E. A. Stach, M. T. Dugger, M. Enachescu, and R. O. Ritchie
• added 03-01-06
  
• Effect of Product Form and Heat Treatment on the Crystallographic Texture of Austenitic Nitinol by S. W. Robertson, X.-Y. Gong, and R. O. Ritchie
• added 02-17-06
  
• Stress-Corrosion Fatigue-Crack Growth in a Zr-Based Bulk Amorphous Metal by V. Schroeder and R. O. Ritchie
• added 02-07-06
  
• Atomic-Resolution Observation of Semi-Crystalline Intergranular Thin Films in Silicon Nitride by A. Ziegler, J. C. Idrobo, M. K. Cinibulk, C. Kisielowski, N. D. Browning, and R. O. Ritchie
• added 12-15-05
  
• TGF-beta Regulates the Mechanical Properties and Composition of Bone Matrix by G. Balooch, M. Balooch, R. K. Nalla, S. Schilling, E. Filvaroff, G. W. Marshall, S. J. Marshall, R. O. Ritchie, R. Derynck, and T. Alliston
• Re-Evaluating the Toughness of Human Cortical Bone by Q. D. Yang, B. N. Cox, R. K. Nalla, and R. O. Ritchie
• added 12-08-05
  
• On the Improvement of the Ductility of Molybdenum by Spinel (MgAl₂O₄) Particles by J. H. Schneibel, M. P. Brady, J. J. Kruzic, and R. O. Ritchie
• added 12-02-05
  
• Ab Initio Structural Energetics of beta-Si₃N₄ Surfaces by J. C. Idrobo, H. Iddir, S. Öğüt, A. Ziegler, N. D. Browning, and R. O. Ritchie
• added 11-29-05
• High-Cycle Fatigue of a Nickel-Base Superalloy ME3 at Ambient and Elevated Temperatures: Role of Grain-Boundary Engineering by Y. Gao, M. Kumar, R. K. Nalla, and R. O. Ritchie
• added 11-08-05
• Fracture Length Scales in Human Cortical Bone: The Necessity of Nonlinear Fracture Models by Q. D. Yang, B. N. Cox, R. K. Nalla, and R. O. Ritchie
• added 11-03-05
  
• Fatigue and Life Prediction  for Cobalt-Chromium Stents: A Fracture Mechanics Analysis by R. V. Marrey, R. Burgermeister, R. B. Grishaber, and R. O. Ritchie
• added 10-19-05
• Role of Microstructure in the Aging-Related Deterioration of the Toughness of Human Cortical Bone by R. K. Nalla. J. J. Kruzic, J. H. Kinney, M. Balooch, J. W. Ager, III, and R. O. Ritchie
• added 10-18-05
• Fabrication and Mechanical Properties of PLA/HA Composites: A Study of In Vitro Degradation by J. Russias, E. Saiz, R. K. Nalla, K. Gryn, R. O. Ritchie, and A. P. Tomsia
• added 09-13-05
  
• Ambient- to Elevated-Temperature Fracture and Fatigue Properties of Mo-Si-B Alloys: Role of Microstructure by J. J. Kruzic, J. H. Schneibel, and R. O. Ritchie
• added 09-09-05
  
• Ultrastructural Examination of Dentin using Focused Ion-Beam Cross-Sectioning and Transmission Electron Microscopy by R. K. Nalla, A. E. Porter, C. Dariao, A. M. Minor, V. Radmilovic, E. A. Stach, A. P. Tomsia, and R. O. Ritchie
• added 08-17-05
  
• Nanocrystal-Powered Nanomotor by B. C. Regan, S. Aloni, K. Jensen, R. O. Ritchie, and A. Zettl
• added 08-03-05
• Simple and Accurate Fracture Toughness Testing Methods for Pyrolytic Carbon/Graphite Composites used in Heart-Valve Prostheses by J. J. Kruzic, S. J. Kuskowski, and R. O. Ritchie
• added 07-12-05
  
• A Transmission Electron Microscopy Study of Mineralization in Age-Induced Transparent Dentin by A. E. Porter, R. K. Nalla, A. Minor, J. R. Jinschek, C. F. Kisielowski, V. Radmilovic, J. H. Kinney, A. P. Tomsia, and R. O. Ritchie
• added 06-14-05
  
• Deep-Ultraviolet Raman Spectroscopy Study of the Effect of Aging on Human Cortical Bone by J. W. Ager, III, R. K. Nalla, K. L. Breeden, and R. O. Ritchie
• added 05-27-05
• Effects of Moisture on Grain-Boundary Strength, Fracture and Fatigue Properties of Polycrystalline Alumina by J. J. Kruzic, R. M. Cannon, and R. O. Ritchie
• On the Effect of Local Grain-Boundary Chemistry on the Macroscopic Mechanical Properties of a High-Purity Y₂O₃-Al₂O₃-Containing Silicon Nitride Ceramic: Role of Oxygen by A. Ziegler, J. M. McNaney, M. J. Hoffmann, and R. O. Ritchie
• Propagation of Surface Fatigue Cracks in  Human Cortical Bone by J. J. Kruzic, J. Scott, R. K. Nalla, and R. O. Ritchie
• added 05-05-05
  
• Dentin Erosion Simulation by Cantilever-Beam Fatigue and pH Change by M. Staninec, R. K. Nalla, J. F. Hilton, R. O. Ritchie, L. G. Watanabe, G. Nonomura, G. W. Marshall, and S. J. Marshall
• Incomplete Similarity and Fatigue-Crack Growth by R. O. Ritchie
• added 04-08-05
  
• Fatigue Threshold R-Curves for Predicting the Reliability of Ceramics under Cyclic Loading Conditions by J. J. Kruzic, R. M. Cannon, J. W. Ager, III, and R. O. Ritchie
• added 04-04-05
  
• Optimization of Mo-Si-B Intermetallic Alloys by J. H. Schneibel, R. O. Ritchie, J. J. Kruzic, and P. R. Tortorelli
• added 02-15-05
  
• On the Effect of Local Grain-Boundary Chemistry on the Macroscopic Mechanical Properties of a High Purity Y₂O₃-Al₂O₃-Containing Silicon Nitride Ceramic by A. Ziegler, J. M. McNaney, M. J. Hoffmann, and R. O. Ritchie
• Role of Microstructure in Promoting Fracture and Fatigue Resistance in Mo-Si-B Alloys by J. J. Kruzic, J. H. Schneibel, and R. O. Ritchie
• added 02-13-05
  
• A Fracture Mechanics and Mechanistic Approach to the Failure of Cortical Bone by R. O. Ritchie, J. H. Kinney, J. J. Kruzic, and R. K. Nalla
• added 02-13-05
  
• The Dentin-Enamel Junction and the Fracture of Human Teeth by V. Imbeni, J. J. Kruzic, G. W. Marshall, S. J. Marshall, and R. O. Ritchie
• added 02-04-05
  
• Fatigue Failure in Thin-film Polycrystalline Silicon is due to a Subcritical Cracking within the Oxide Layer by D. H. Alsem, E. A. Stach, C. L. Muhlstein, and R. O. Ritchie
• added 02-01-05
  
• Light Emission during Fracture of a Zr-Ti-Ni-Cu-Be Bulk Metallic Glass by C. J. Gilbert, J. W. Ager, III, V. Schroeder, J. P. Lloyd, J. R. Graham, and R. O. Ritchie
• added 01-20-05
  
• Crystallographic Texture for Tube and Plate of the Superelastic/Shape-Memory Alloy Nitinol Used for Endovascular Stents by S. W. Robertson, V. Imbeni, H.-R. Wenk, and R. O. Ritchie
• added 12-8-04
• Effects of Polar Solvents on the Fracture Resistance of Dentin: Role of Water Hydration by R. K. Nalla, M. Balooch, J. W. Ager, J. J. Kruzic, J. H. Kinney, and R. O. Ritchie
• added 12-4-04
• Interface Structure and Atomic Bonding Characteristics in Silicon Nitride Ceramics by A. Ziegler, J. C. Idrobo, M. K. Cinibulk, C. Kisielowski, N. D. Browning, and R. O. Ritchie
• added 11-17-04
• Age-Related Transparent Root Dentin: Mineral Concentration, Crystallite Size, and Mechanical Properties by J. H. Kinney, R. K. Nalla, J. A. Pople, T. M. Breunig, and R. O. Ritchie
• added 11-04-04
• In Vitro Fracture in Human Cortical Bone: Local Fracture Criteria and Toughening Mechanisms by R. K. Nalla, J. S. Stölken, J. H. Kinney, and R. O. Ritchie
• added 10-28-04
• Mechanistic Aspects of In Vitro Fatigue-Crack Growth in Dentin by J. J. Kruzic, R. K. Nalla, J. H. Kinney, and R. O. Ritchie
• added 09-22-04
• A.E. Porter, R.K. Nalla, J.H. Kinney and R.O. Ritchie, “Changes in mineralization with aging-induced transparency in human root dentin”, in: The 2004 Gordon Research Conference on Biomineralization, New London, NH, August 2004.  [View Poster]
• added 09-19-04
• Characteristic Dimensions and the Micro-Mechanisms of Fracture and Fatigue in ‘Nano’ and ‘Bio’ Materials by R. O. Ritchie, J. J. Kruzic, C. L. Muhlstein, R. K. Nalla, and E. A. Stach
• added 09-16-04
• On the Role of Grain-Boundary Films in Optimizing the Mechanical Properties of Silicon Carbide Ceramics by R. O. Ritchie, X.-F. Zhang, and L. C. De Jonghe
• Utilizing On-Chip Testing and Electron Microscopy to Study Fatigue and Wear in Polysilicon Strcutural Films by D. H. Alsem, E.A. Stach, C.L. Muhlstein, M.T. Dugger, and R.O. Ritchie
• Effects of the Amorphous Oxide Intergranular Layer Structure and Bonding on the Fracture Toughness of a High Purity Silicon Nitride A. Ziegler, C. Kisielowski, M. J. Hoffmann, and R. O. Ritchie
• added 09-09-04
• Mechanistic Aspects of In Vitro Fatigue-Crack Growth in Dentin by J. J. Kruzic, R. K. Nalla, J. H. Kinney, and R. O. Ritchie
• added 07-31-04
• Aspects of In Vitro Fatigue-Crack Growth in Human Cortical Bone: Time- and Cycle-Dependent Crack Growth by R. K. Nalla, J. J. Kruzic, J. H. Kinney, and R. O. Ritchie 
• updated 06-17-04
• Mechanistic Aspects of Fracture and R-Curve Behavior in Human Cortical Bone by R. K. Nalla, J. J. Kruzic, J. H. Kinney, R. O. Ritchie
• added 06-04-04
• On the Electronic and Mechanical Instabilities in Ni50.9Ti49.1 by A. Mehta, V. Imbeni, R. O. Ritchie, and T. W. Duerig
• added 05-16-04
• Nanowicks: Nanotubes as Tracks for Mass Transfer by B.C. Regan, S. Aloni, B. Huard, A. Fennimore, R.O. Ritchie and A. Zettl
• added 05-04-04
• On the Origin of Toughness of Mineralized Tissue: Microcracking or Uncracked-Ligament Bridging? by R. K. Nalla, J. J. Kruzic, and R. O. Ritchie
• added 04-29-04
• Constitutive Modelling and Numerical Simulation of Multivariant Phase Transformation in Superelastic Shape-Memory Alloy by Y. Jung, P. Papadopoulos, and R. O. Ritchie
• added 04-28-04
• Mechanistic Aspects of Fracture and R-Curve Behavior in Human Cortical Bone by R. K. Nalla, J. J. Kruzic, J. H. Kinney, R. O. Ritchie
• Carbon Nanotubes as Nanoscale Mass Conveyors by B. C. Regan, S. Aloni, R. O. Ritchie, U. Dahmen, and A. Zettl
• added 01-23-04
• Crack-Size Effects on Cyclic and Monotonic Crack Growth in Polycrystalline Alumina: Quantification of the Role of Grain Bridging by J. J. Kruzic, R. M. Cannon, and R. O. Ritchie
• added 12-04-03
• Cyclic Fatigue-Crack Propagation in Sapphire in Air and Simulated Physiological Environments by B. Asoo, J. M. McNaney, Y. Mitamura, and R. O. Ritchie
• added 12-03-03
• Probing Structural Phase Transitions of Crystalline C60 via Resistivity Measurements of Metal Film Overlayers by C. W. Chang, B. C. Regan, W. Mickelson, R. O. Ritchie, and A. Zettl
• added 11-24-03
• Fracture and Fatigue Resistance of Mo-Si-B Alloys for Ultrahigh-Temperature Structural Applications by J. J. Kruzic, J. H. Schneibel, and R. O. Ritchie
• added 10-31-03
• Fatigue of Polycrystalline Silicon for Microelectromechanical Systems: Crack Growth and Stability under Resonant Loading Conditions by C. L. Muhlstein, R. T. Howe, and R. O. Ritchie
• added 10-25-03
• Ambient to high-temperature fracture toughness and cyclic fatigue behavior in Al-containing silicon carbide ceramics by R. Yuan, J.J. Kruzic, X.F. Zhang, L.C. De Jonghe, R.O. Ritchie
• added 10-17-03
• On the Fracture of Human Dentin: Is It Stress- or Strain-Controlled? by R. K. Nalla, J. H. Kinney, and R. O. Ritchie
• added 10-16-03
• On the Mechanical Behavior of Nitinol under Multiaxial Loading Conditions and In Situ Synchrotron X-Ray Diffraction by V. Imbeni, A. Mehta, S. W. Robertson, T. W. Duerig, A. Pelton, and R. O. Ritchie
• Atomic-Resolution Transmission Electron Microscopy of a Y₂O₃-Containing Silicon Nitride Ceramic by A. Ziegler, C. Kisielowski, M. Hoffmann, and R. O. Ritchie
• added 09-02-03
• Crack blunting, crack bridging and resistance-curve fracture mechanics indentin: effect of hydration by J. J. Kruzic, R. K. Nalla, J. H. Kinney, and R. O. Ritchie
• added 08-28-03
• Mechanical Relaxation of Localized Residual Stresses Associated with Foreign Object Damage by B. L. Boyce, X. Chen, J. O. Peters, J. W. Hutchinson, and R. O. Ritchie
• added 08-25-03
• Mo-Si-B Alloy Development by J. H. Schneibel, J. J. Kruzic, R. O. Ritchie
• added 08-17-03
• High-Cycle Fatigue of Micron-Scale Polycrystalline Silicon Films: Fracture Mechanics Analysis of the Role of the Silicon/Silica Interface by C. L. Muhlstein and R. O. Ritchie
• added 08-16-03
• Texture in Tubes and Plates of the Superelastic/Shape-Memory Alloy Nitinol by S. W. Robertson, V. Imbeni, E. Notkina, H.-R. Wenk, and R. O. Ritchie
• Abrasive Wear Behavior of Heat-Treated ABC-Silicon Carbide by X. F. Zhang, G. Y. Lee, Da Chen, R. O. Ritchie, and L. C. De Jonghe
• added 08-14-03
• Failure of Silicon: Crack Formation and Propagation (presentation at 13^th Crystalline Silicon Solar Cell Workshop----Vail, Colorado, August 2003)
• added 08-09-03
• Determining the Toughness of Ceramics from Vickers Indentations using the Crack-Opening Displacements: An Experimental Study, by J. J. Kruzic and R. O. Ritchie
• added 07-02-03
• On the Influence of Mechanical Surface Treatments -- Deep Rolling and Laser Shock Peening -- on the Fatigue Behavior of Ti-6Al-4V at Ambient and Elevated Temperatures  by R. K. Nalla, I. Altenberger, U. Noster, G. Y. Liu, and B. Scholtes, and R. O. Ritchie
• added 06-09-03
• Effect of Orientation on the In Vitro Fracture Toughness of Dentin: The Role of Toughening Mechanisms by R. K. Nalla, J. H. Kinney, and R. O. Ritchie
• In the In Vitro Fatigue Behavior of Human Dentin with Applications for Life Prediction by R. K. Nalla, V. Imbeni, J. H. Kinney, M. Staninec, S. J. Marshall, and R. O. Ritchie
• In the In Vitro Fracture Toughness of Human Dentin by V. Imbeni, R. K. Nalla, C. Bosi, J. H. Kinney, and R. O. Ritchie
• added 06-03-03
• An Experimental Study of the Superelastic Effect in a Shape-Memory Nitinol Alloy under Biaxial Loading by J. M. McNaney, V. Imbeni, Y. Jung, P. Papadopoulos, and R. O. Ritchie
• Effects of Plastic Constraint on the Cyclic and Static Fracture Behavior of Metal/Ceramic Layered Structures by J. J. Kruzic, J. M. McNaney, R. M. Cannon, and R. O. Ritchie
• Fatigue of Polycrystalline Silicon for Microelectromechanical Systems: Crack Growth and Stability under Resonant Loading Conditions by C. L. Muhlstein, R. T. Howe, and R. O. Ritchie
• added 04-15-03
• An In Situ Study of the Thermal Stability of Near-Surface Microstructures Induced by Deep Rolling and Laser-Shock Peening by I. Altenberger, E. A. Stach, G. Liu, R. K. Nalla, and R. O. Ritchie
• added 02-15-03
• Fracture and Fatigue Properties of Mo-Mo3Si-Mo5SiB2 Refractory Intermetallic Alloys at Ambient to Elevated Temperatures (25 C- 1300 C) by H. Choe, J. H. Schneibel, and R. O. Ritchie
• added 02-12-03
• "Fatigue and Fracture of Biomedical Materials" updated
• added 02-11-03
• New project " Grain Boundary Engineering in Promoting High-Cycle Fatigue Resistance " posted
• added 02-10-03
• Mechanistic Fracture Criteria for the Failure of Human Cortical Bone by R. K. Nalla, J. H. Kinney, and R. O. Ritchie
• added 02-05-03
• Ravi Nalla's resume updated
• added 01-24-03
• New student Daan Hein Alsem's resume posted
• added 11-10-02
• High cycle fatigue of beta-titanium alloys by J.O. Peters, G. Lütjering, R.K. Nalla, I. Altenberger, and R.O. Ritchie
• added 10-15-02
• Fracture and Fatigue Behavior at Ambient and Elevated Temperatures of Alumina Bonded with Copper/Niobium/Copper Interlayers by J. J. Kruzic, R. A. Marks, M. Yoshiya, A. M. Glaeser, R. M. Cannon, and R. O. Ritchie
• added 10-15-02
• Direct Mechanical Measurement of the Tensile Strength and Elastic Modulus of Multiwalled Carbon Nanotubes by B. G. Demczyk, Y. M. Yang, J. Cumings, M. Hetman, W. Han, A. Zettl, and R. O. Ritchie
• added 07-30-02
• Statistical Fracture Modeling: Crack Path and Fracture Criteria with Application to Homogeneous and Functionally Graded Materials by T. L. Becker, Jr., R. M. Cannon, and R. O. Ritchie
• added 07-28-02
• A Reaction-Layer Mechanism for the Delayed Failure of Micron-Scale Polycrystalline Silicon Structural Films Subjected to High-Cycle Fatigue Loading by C. L. Muhlstein, E. A. Stach and R. O. Ritchie
• added 07-27-02
• Fracture Toughness and Fatigue-Crack Propagation in a Zr-Ti-Ni-Cu-Be Bulk Metallic Glass by C. J. Gilbert, R. O. Ritchie, and W. L. Johnson
• added 07-27-02
• Fracture of Synthetic Diamond by M. D. Drory, R. H. Dauskardt, A. Kant, and R. O. Ritchie
• added 07-25-02
• Mixed-Mode High-Cycle Fatigue Crack Growth Thresholds in Ti-6Al-4V: Role of Small Cracks by R. K. Nalla, J. P. Campbell and R. O. Ritchie
• added 07-12-02
• On the Application of the Kitagawa-Takahashi Diagram to Foreign-Object Damage and High-Cycle Fatigue by J. O. Peters, B. L. Boyce, X. Chen, J. M. McNaney, J. W. Hutchinson, and R. O. Ritchie
• added 06-10-02
• Effects of Microstructure on Mixed-Mode, High-Cycle Fatigue Crack Growth Thresholds in Ti-6Al-4V alloy by R. K. Nalla, J. P. Campbell and R. O. Ritchie
• added 05-16-02
• On the Fatigue Behavior and Associated Effect of Residual Stresses in Deep-Rolled and Laser Shock Peened Ti-6Al-4V Alloys at Ambient and Elevated Temperatures by I. Altenberger, R. K. Nalla, U. Noster, B. Scholtes, and R. O. Ritchie
• Role of Crack Size and Microstructure in Influencing Mixed-Mode High-Cycle Fatigue Thresholds in Ti-6Al-4V by R. K. Nalla and R. O. Ritchie
• added 04-22-02
• Influence of Microstructure on the High-Cycle Fatigue of Ti-6Al-4V: Bimodal vs. Lamellar Structures by R. K. Nalla, B. L. Boyce, J. P. Campbell, J. O. Peters, and R. O. Ritchie
• added 04-19-02
• Fatigue-Crack Growth Behavior in the Superelastic and Shape-Memory Material Nitinol by A. L. McKelvey and R. O. Ritchie
• added 03-21-02
• Mechanism of Fatigue in Micron-Scale Films of Polycrystalline Silicon for Microelectromechanical Systems  by C. L. Muhlstein, E. A. Stach and R. O. Ritchie
• added 02-07-02
• A physically-based abrasive wear model for composite materials by G.Y. Lee, C.K.H. Dharan, and R.O. Ritchie
• added 02-01-02
• High-cycle fatigue of Ti-6Al-4V by R.O.Rtichie, D.L.Davidson, B.L.Boyce, J.P.Campbell and O.Roder
• added 02-01-02
• Mechanisms of fatigue-crack propagation in ductile and brittle solids by R.O.Ritchie
• added 01-28-02
• Valentina Imbeni's resume updated
• added 01-25-02
• An approximate method for residual stress calculation in functionally graded materials by T.L.Becker Jr., R.M.Cannon, R.O.Ritchie
• added 01-22-02
• Foreign-object damage and high-cycle fatigue: role of microstructure in Ti-6Al-4V by J.O. Peters and R.O. Ritchie
• added 01-15-02
• Imaging of the Crystal Structure of Silicon Nitride at 0.8Å Resolution by A. Ziegler, C. Kisielowski, and R. O. Ritchie
• added 01-14-02
• Cyclic Fatigue-Crack Growth and Fracture Properties in  Ti₃SiC₂Ceramics at Elevated Temperatures by D. Chen, K. Shirato, M. W. Barsoum, T. El-Raghy, and R. O. Ritchie
• added 01-11-02
• Effect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V by B. L. Boyce and R. O. Ritchie
• added 01-11-02
• Mixed-Mode, High-Cycle Fatigue-Crack Growth Thresholds in Ti-6Al-4V: Part II – Quantification of Crack-Tip Shielding by J. P. Campbell and R. O. Ritchie
• added 01-11-02
• Mixed-Mode, High-Cycle Fatigue-Crack Growth Thresholds in Ti-6Al-4V: Part I – A Comparison of Large and Small Crack Behavior by J. P. Campbell and R. O. Ritchie
• added 01-11-02
• Influence of Foreign Object Damage on Crack Initiation and Early Fatigue-Crack Growth in Ti-6Al-4V by J. O. Peters and R. O. Ritchie
• added 12-17-01
• High-cycle fatigue of single crystal silicon thin films by C. L. Muhlstein, S. Brown, and R. O. Ritchie, JMEMS, 2001
• added 12-14-01
• Foreign object damage and high-cycle fatigue of Ti-6Al-4V by J.O. Peters and R.O. Ritchie, Materials Science & Engineering A, 2001
• added 11-21-01
• High-cycle fatigue and durabilityof polycrystalline silicon thin films in ambient air  by C.L. Muhlstein, S.B. Brown, and R.O. Ritchie
• added 11-20-01
• Websupporter updated
• added 11-02-01
• Tohru Suzuki's new address
• added 10-24-01
• Ravi Nalla's resume updated
• added 10-23-01
• Schedule of MSE212 class updated
• added 10-23-01
• Seminar schedule updated
• added 10-10-01
• Chiara Bosi's resume posted
• added 10-09-01
• Professor Ritchie's resume updated
• added 09-30-01
• Jay and Brad at graduation ceremony in May 2001
• added 09-26-01
• High-cycle fatigue of polycrystalline silicon thin films in laboratory air by C.L. Muhlstein, S.B. Brown, and R.O. Ritchie
• added 08-30-01
• New graduate student, Yong Gao's resume posted
• added 08-24-01
• Gun Lee's resume updated
• added 08-16-01
• A comparison of the mechanisms of fatigue-crack propagation behavior in a Zr-based bulk amorphous metal in air and an aqueous chloride solution

by V. Schroeder, C.J. Gilbert, and R.O. Ritchie
• added 08-10-01
• The residual stress state due to a spherical hard-body impact

by B.L. Boyce, X. Chen, J.W. Hutchinson, and R.O. Ritchie
• added 07-28-01
• Structure of boron nitride nanotubules

by B.G. Demczyk, J. Cumings, A. Zettl, and R.O. Ritchie
• added 07-24-01
• Brad Boyce's new address & phone number
• added 07-11-01
• AFOSR MURI Annual Report 2001
• added 06-19-01
• Finite crack kinking and T-stresses in functionally graded materials

by T.L. Becker Jr., R.M. Cannon, and R.O. Ritchie
• added 06-18-01
• Ambient to high temperature fracture toughness and fatigue-crack propagation behavior in a Mo-12Si-8.5B (at.%) intermetallic

by H. Choe, D. Chen, J.H. Schneibel, and R.O. Ritchie
• added 06-11-01
• Gun Lee's resume updated
• added 06-11-01
• New research program: Wear of Composite Materials
• added 06-06-01
• A physically-based abrasive wear model for composite materials

, by G.Y. Lee, C.K.H. Dharan, and R.O. Ritchie
• added 05-03-01
• The residual stress state due to a spherical hard-body impact

, by B.L. Boyce, X. Chen, J.W. Hutchinson, and R.O. Ritchie
• added 05-02-01
• Jim McNaney's new address
• added 04-22-01
• HCF6-Highlights
• added 04-08-01
• In situ measurement of fatigue crack growth rates in a silicon carbide ceramic at elevated temperatures using a DC potential system
• Effects of grain-boundary structure on the strength, toughness, and cyclic fatigue properties of a monolithic silicon carbide
• added 04-02-01
• Dr. Valentina Imbeni's resume posted
• added 03-30-01
• Experimental Assessment of Strain Gradient Plasticity Theories , by Monica Barney et al
• added 03-19-01
• Short and large crack, mixed-mode fatigue-crack growth thresholds in Ti-6Al-4V , by Ravi Nalla et al
• added 03-19-01
• Mixed-mode, high-cycle fatigue-crack growth thresholds in Ti-6Al-4V: a comparison of large and small crack behavior , by Ravi Nalla et al
• added 03-15-01
• Time dependent debonding of aluminum/alumina interfaces under cyclic and static loading by Jay Kruzic et al., MRS Fall Meeting, 2000
• added 03-12-01
• Professor Ritchie's photo updated
• added 03-01-01
• Monica Barney's resume posted
• added 02-27-01
• Dr. Suzuki's resume posted
• added 02-25-01
• Dr. Ciavarella's resume posted
• added 02-20-01
• "Fatigue and fracture of boron-doped molybdenum silicides" updated
• added 02-20-01
• Graduating students this semester
• added 01-17-01
• Jay's MRS paper
• added 01-16-01
• Jan O. Peters' new address
• added 01-12-01
• Another Ritchie group picture during farewell party for Jan Peters
• added 01-12-01
• Role of the grain-boundary phase on the elevated-temperature strength, toughness, fatigue and creep resistance of silicon carbide sintered with Al, B and C
• added 01-08-01
• Ritchie group picture during fairwell party for Jan Peters
• added 12-14-00
• Fracture and fatigue-crack growth behavior in Mo-12Si-8.5B intermetallics at ambient and elevated temperatures, TMS Fall conference, 2000
• Mechanisms of high-temperature fatigue in silicon carbide ceramics, TMS Fall conference, 2000
• High-temperature cyclic fatigue-crack growth in monolithic Ti ₃ SiC₂ceramics, TMS Fall conference, 2000
• added 12-08-00
• Jay Kruzic's MRS presentation
• added 12-01-00
• Fatigue slip lines on the surface of AISI 304 steel
• Shot-peened surface of normalized plain carbon steel SAE 1045
• Crack-tip of bimodal Ti-6Al-4V and plastic zone around it
• added 11-27-00
• Heeman's resume updated
• added 10-31-00
• Homework #7 for MSE113
• added 10-06-00
• Homework solutions #2 and #3 for MSE113
• added 9-30-00
• Problem set #5 for MSE113
• added 9-26-00
• Alexander's updated resume
• added 9-26-00
• Problem set #4 for MSE 113
• added 9-20-00
• Problem set #3 for MSE 113
• added 9-14-00
• Jay Kruzic's presentation on "Fracture and Fatigue of Alumina-Metal Interfaces" at the American Ceramic Society, > 

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Transfer interrupted!

• added 9-13-00
• Rong Yuan's resume
• added 9-01-00
• MURI Annual Report for the year 2000
• added 8-20-00
• TMS presentation on fatigue and fracture behavior of Mo-12Si-8.5B alloy
• added 8-08-00
• Teaching schedule for MSE113, Fall 2000
• added 7-26-00
• Valeska Schroeder's new address
• added 7-26-00
• Da Chen's new address
• added 6-30-00
• Fatigue and Fracture Behavior of Titanium Silicon Carbides
• added 6-15-00
• Gun Lee's resume
• added 6-14-00
• Igor Altenberger's resume
• added 5-19-00
• Presentation on Metal/Ceramic Interfaces at the American Ceramic Society Annual Meeting, 2000 in St. Louis, MO.
• added 5-17-00
• Fatigue-crack growth and fracture properties of coarse and fine-grained Ti₃SiC ₂ by Gilbert et al.
• added 4-5-00
• MURI page updated
• added 4-3-00
• SEM micrograph of crack path during R-curve test in Mo-12Si-8.5B
• added 4-2-00
• High-temperature cyclic fatigue-crack growth behavior in an in situ toughened silicon carbide by D. Chen et al.
• added 4-1-00
• Updated program description for fatigue and fracture of SiC at high temperatures
• added 3-30-00
• Jan O. Peters' updated resume
• added 3-18-00
• Residual stress fields due to static and dynamic indentation by B. L. Boyce
• added 2-29-00
• Effect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V by B. L. Boyce and R. O. Ritchie
• added 2-07-00
• Ritchie group seminar schedule for Spring 2000
• added 1-17-00
• Updated course schedule for MSE211-ME225
• added 1-12-00
• Josh Campbell's new address
• added 1-11-00
• Updated course description for MSE211-ME225
• added 12-7-99
• At farewell dinner for Madeleine Gordon
• added 12-4-99
• John Mcnulty's updated address
• added 11-14-99
• Updated Ritchie Group Online Library
• added 11-10-99
• Observed fractography and crack profile from Ti-6Al-4V resulting from fatigue loading
• added 11-4-99
• Updated Ritchie Group Online Library
• added 11-1-99
• Ritchie Group Online Library
• added 10-11-99
• Role of Foreign Object Damage on Thresholds for High-Cycle Fatigue in Ti-6Al-4V
• added 10-4-99
• Updated seminar schedule
• added 9-30-99
• Ravi Nalla's resume
• added 8-26-99
• SEM pictures of an in situ toughened SiC ceramic and an inllustration of the electrical potential-drop technique used during high-temp. cyclic fatigue tests for the SiC ceramic
• added 8-25-99
• Third progress report for AFOSR-MURI high-cycle fatigue program
• added 8-23-99
• Online publications on shape-memory alloy
• added 8-16-99
• Publications on Bulk Metallic Glasses
• added 8-13-99
• Fracture and Fatigue of Boron-based Molybdenum Silicides
• added 8-11-99
• Power Point slides on Mixed-Mode RKR Modeling of FMGs from US Congress on Computational Mechanics '99
• added 7-26-99
• Photo Gallery
• added 7-13-99
• A list of students graduating this semester
• added 7-11-99
• New detailed web access statistics
• added 7-9-99
• "Measurement of residual stresses in impact damage Ti-6Al-4V"
• "Mixed-mode crack-growth thresholds in Ti-6Al-4V under turbine-engine high cycle fatigue loading conditions"
• added 6-26-99
• Course description for Fall 1999's MSE 113
• Course description for Spring 2000's MSE 212/ME 225
• added 6-3-99
• Update publication list for R.O. Ritchie
• added 6-2-99
• Description of research programs on bioengineering materials
• added 6-1-99
• Berkeley Lab Currents article on Metglass research
• added 5-13-99
• Updated program page for TiAl research
• Acta Materialia paper on Small Crack Fatigue in gamma-TiAl in PDF
• added 4-29-99
• Novel System for In-Situ Visualization of Surfaces at High Temperatures
• added 5-6-99
• CV for Ronan le Toquin
• added 4-26-99
• Description of research program on the fatigue of structural films
• added 2-24-99
• Online MURI publication: "On the definition of lower-bound fatigue-crack propagation threshoilds in Ti-6Al-4V under high cycle fatigue conditions"
• Online MURI publication: "Influence of simulated foreign object damage on the high-cycle fatigue properties of Ti-6Al-4V for gas turbine blades"
• Updated publication list for MURI on HCF
• CV for Christopher Muhlstein
• added 2-9-99
• Scripta Mat paper on the fatigue of bulk metallic glasses
• Udated resume for Valeska Schroeder
• added 1-20-99
• Schedule for Spring 99 Ritchie group seminar series
• added 1-20-99
• Program description for fatigue and fracture of metal/ceramic interfaces
• added 1-12-99
• CV for Jan Peters
• added 1-7-99
• Program description of research on Nitinol shape memory alloy, including an online versions of a Fall MRS paper and Philosophical Magazine A paper
• added 12-15-98
• Updated program description of research on gamma-TiAl, including extended publications list
• added 12-11-98
• Fall MRS paper on the fatigue of gamma-TiAl
• added 12-07-98
• Two more online publications from the MURI
• Corrections to MSE 212 course syllabus
• added 11-25-98
• List of sponsors
• added 11-8-98
• Updated publications list for MURI on HCF
• added 11-5-98
• Program highlight for work on bulk metallic glasses
• added 10-9-98
• Schedule for group seminars for Fall 98
• CV for Rowland Cannon
• New MURI-HCF paper
• New FGM paper
• Updated and expanded list of former group members
• added 10-6-98
• CV for Heeman Choe
• CV for Chris Gilbert (update)
• added 10-5-98
• Updated list of investigators for the MURI-HCF program
• Updated overview for the MURI-HCF program
• Program description for SiC fatigue and fracture at high temperatures
• CV for Da Chen
• CV for Jim McNaney
• CV for Alexander Ziegler
• added 10-2-98
• Course descriptions for MSE 113 and MSE 212
• Quad chart for the MURI on high-cycle fatigue