Mechanics of Fracture Initiation and Propagation

1. A special theory of crack propagation.- 1.1 Historical remarks.- 1.2 The strain energy density concept.- 1.3 Fundamental hypotheses on crack initiation and direction.- 1.4 Prediction of crack growth direction.- 1.5 Intrinsic property of strain energy density factor.- 1.6 Mixed mode fracture criterion.- 1.7 Concluding remarks.- 1.8 References.- 2. A three-dimensional strain energy density factor theory of crack propagation.- 2.1 Preliminary remarks.- 2.2 Generalized stress field near crack border.- 2.3 Strain energy density factor.- 2.4 Basic assumptions of the theory.- 2.5 Minimum values of S.- 2.6 Application of the S-theory to the elliptical crack problem.- 2.7 Shape of fracture increment.- 2.8 Concluding remarks.- 2.9 Appendix 2.1: Elliptical crack in tension.- 2.10 Appendix 2.2: Combined Mode I and III loading.- 2.11 Appendix 2.3: Elliptical crack in compression.- 2.12 References.- 3. Straiu energy density theory applied to plate-bending and shell problems.- 3.1 Introductory remarks.- 3.2 Strain energy density factor theory.- 3.3 Bending and twisting of cracked plates.- 3.4 Direction of crack growth.- 3.5 Minimum strain energy density factors and allowable bending moments.- 3.6 Additional results on plates.- 3.7 Shell theory with shear deformation.- 3.8 Symmetric loading on shell.- 3.9 References.- 4. Dynamic crack problems - strain energy density fracture theory.- 4.1 Preliminary remarks.- 4.2 Strain energy density criterion in elastodynamics.- 4.3 Mixed mode impact.- 4.4 Standing plane waves impinging on a crack.- 4.5 Crack bifurcation.- 4.6 Summary and conclusions.- 4.7 References.- 5. Strain energy density and surface layer energy for blunt cracks or notches.- 5.1 Background information.- 5.2 Surface layer energy.- 5.3 Strain energy density theory.- 5.4 The embedded elliptical notch.- 5.5 Two external notches.- 5.6 Concluding remarks.- 5.7 References.- 6. Thermoelastic and hygrothermoelastic behavior of cracks.- 6.1 Introduction.- 6.2 Linear