Page 10 - Mechanical Behavior of Materials

Contents 9

13 Stress–Strain Analysis of Plastically Deforming Members 693

13.1 Introduction 693
13.2 Plasticity in Bending 694
13.3 Residual Stresses and Strains for Bending 703
13.4 Plasticity of Circular Shafts in Torsion 707
13.5 Notched Members 710
13.6 Cyclic Loading 722
13.7 Summary 733
References 734
Problems and Questions 735

14 Strain-Based Approach to Fatigue 745
14.1 Introduction 745
14.2 Strain Versus Life Curves 748
14.3 Mean Stress Effects 758
14.4 Multiaxial Stress Effects 767
14.5 Life Estimates for Structural Components 771
14.6 Discussion 781
14.7 Summary 789
References 790
Problems and Questions 791

15 Time-Dependent Behavior: Creep and Damping 802

15.1 Introduction 802
15.2 Creep Testing 804
15.3 Physical Mechanisms of Creep 809
15.4 Time–Temperature Parameters and Life Estimates 821
15.5 Creep Failure under Varying Stress 833
15.6 Stress–Strain–Time Relationships 836
15.7 Creep Deformation under Varying Stress 841
15.8 Creep Deformation under Multiaxial Stress 848
15.9 Component Stress–Strain Analysis 850
15.10 Energy Dissipation (Damping) in Materials 855
15.11 Summary 864
References 867
Problems and Questions 868

Appendix A Review of Selected Topics from Mechanics of Materials 880

A.1 Introduction 880
A.2 Basic Formulas for Stresses and Deflections 880