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基本説明
Examines the various causes of fatigue including crack growth, defects, temperature, environmental, and corrosion.
Full Description
The design of mechanical structures with improved and predictable durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading experts in the field, this book (which is complementary to Fatigue of Materials and Structures: Application to Damage and Design, also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field.
The book deals with crack initiation, crack growth, low-cycle fatigue, gigacycle fatigue, shorts cracks, fatigue micromechanisms and the local approach to fatigue damage, corrosion fatigue, environmental effects and variable amplitude loadings, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of mechanical, structural, civil, design, nuclear, and aerospace engineering as well as materials science.
Contents
Foreword xiii
Chapter 1. Introduction to Fatigue: Fundamentals and Methodology 1
André PINEAU and Claude BATHIAS
1.1. Introduction to the fatigue of materials 1
1.2. Mechanisms of fatigue damage 10
1.3. Test systems 13
1.4. Structural design and fatigue 15
1.5. Fatigue of polymers, elastomers and composite materials 16
1.6. Conclusion 18
1.7. Bibliography 19
Chapter 2. Modeling of Fatigue Strength and Endurance Curve 23
Henri-Paul LIEURADE
2.1. Introduction 23
2.2. Nature and aspect of the scatter of fatigue test results 25
2.3. Determination of the endurance limit 27
2.4. Estimation methods of fatigue resistance and standard deviation with N cycles 27
2.5. Mathematical representations and plotting methods of the Wöhler curve 47
2.6. Estimation of the cycle number N for a given level of stress amplitude 55
2.7. Influence of mechanical parameters on endurance 59
2.8. Relationship between endurance and mechanical characteristics (of steels) 62
2.9. Bibliography 66
Chapter 3. Fatigue Crack Initiation 69
Paul RABBE and Louis ANQUEZ
3.1. Introduction 69
3.2. Physical mechanisms of crack initiation 70
3.3. Methods of evaluating crack initiation 81
3.4. Practical method of structure calculation 97
3.5. Bibliography 109
Chapter 4. Low-cycle Fatigue 113
André PINEAU
4.1. Introduction 113
4.2. Phenomenological description of low-cycle fatigue 122
4.3. Adaptation mechanism and cracking during low-cycle fatigue 134
4.4. Conclusion 172
4.5. Acknowledgements 172
4.6. Bibliography 173
Chapter 5. Gigacycle Fatigue 179
Claude BATHIAS
5.1. Introducing the real-life fatigue life of machines 179
5.2. Testing process 181
5.3. Systems of piezoelectric fatigue machines 188
5.4. SN curves above 107 cycles 190
5.5. Initiation mechanism under gigacycle fatigue 209
5.6. Assessing fatigue strength 219
5.7. Conclusion 226
5.8. Bibliography 226
Chapter 6. Fatigue Crack Growth Laws 231
Jacques MASOUNAVE, Jean-Paul BAÏLON and John-Ivan DICKSON
6.1. Introduction 231
6.2. Models describing crack propagation 232
6.3. Critical evaluation of the models 249
6.4. Future plans 258
6.5. Conclusion 260
6.6. Bibliography 261
Chapter 7. Short Crack Propagation 269
Yves VERREMAN
7.1. Introduction 269
7.2. Theoretical considerations showing the limits of LEFM 271
7.3. Experimental observations 275
7.4. Role of closure in the behavior of short cracks 285
7.5. Modeling of the behavior of short cracks 291
7.6. Conclusion 302
7.7. Acknowledgements 303
7.8. Bibliography 303
Chapter 8. Plastic Deformation Mechanisms at the Crack Tip 311
Claude BATHIAS
8.1. Introduction 311
8.2. Fatigue plastic deformation at the crack tip 312
8.3. Microfractographic aspects of the fatigue crack 323
8.4. Model based on displacement on crack tip opening 328
8.5. Cyclic stress hardening at the crack tip 331
8.6. Model based on the effective stress intensity factor 334
8.7. Conclusion 342
8.8. Bibliography 343
Chapter 9. Local Approach to Fatigue Crack Growth 347
Sylvie POMMIER
9.1. Introduction 347
9.2. Plasticity at the crack tip 348
9.3. Cyclic plasticity at the crack tip 355
9.4. Local approach to fatigue crack growth 366
9.5. Conclusion 372
9.6. Bibliography 373
Chapter 10. Corrosion Fatigue 377
Régis PELLOUX and Jean-Marc GENKIN
10.1. Introduction 377
10.2. Crack initiation 378
10.3. Short cracks 384
10.4. Long crack propagation 385
10.5. Conclusions 397
10.6. Bibliography 397
Chapter 11. Effect of Environment 401
Jean PETIT and Christine SARRAZIN-BAUDOUX
11.1. Introduction 401
11.2. Effect of environment on lifetime under high-cycle fatigue conditions 403
11.3. Influence of the environment on fatigue crack propagation 411
11.4. Conclusion 443
11.5. Bibliography 444
Chapter 12. Fatigue under Variable Amplitude Loadings 457
Thierry PALIN-LUC
12.1. Introduction 457
12.2. Variable amplitude loadings 460
12.3. Fatigue tests under variable amplitude loadings 478
12.4. Factors influencing the test results under variable amplitude loading 486
12.5. Fatigue lifetime assessment under variable amplitude loading 493
12.6. Conclusion 497
12.7. Bibliography 498
List of Authors 503
Index 505
