Fracture Mechanics: An Introduction

ISBN-13: 9781402028632 / Angielski / Twarda / 2005 / 370 str.

E. E. Gdoutos

Opis

New developments in the applications of fracture mechanics to engineering problems have taken place in the last years. Composite materials have extensively been used in engineering problems. Quasi-brittle materials including concrete, cement pastes, rock, soil, etc. all benefit from these developments. Layered materials and especially thin film/substrate systems are becoming important in small volume systems used in micro and nanoelectromechancial systems (MEMS and NEMS). Nanostructured materials are being introduced in our every day life. In all these problems fracture mechanics plays a major role for the prediction of failure and safe design of materials and structures. These new challenges motivated the author to proceed with the second edition of the book. The second edition of the book contains four new chapters in addition to the ten chapters of the first edition. The fourteen chapters of the book cover the basic principles and traditional applications, as well as the latest developments of fracture mechanics as applied to problems of composite materials, thin films, nanoindentation and cementitious materials. Thus the book provides an introductory coverage of the traditional and contemporary applications of fracture mechanics in problems of utmost technological importance. With the addition of the four new chapters the book presents a comprehensive treatment of fracture mechanics. It includes the basic principles and traditional applications as well as the new frontiers of research of fracture mechanics during the last three decades in topics of contemporary importance, like composites, thin films, nanoindentation and cementitious materials. The book contains fifty example problems and more than two hundred unsolved problems. A "Solutions Manual" is available upon request for course instructors from the author.

Recenzje

From the reviews of the second edition:

"The second edition of this textbook ... now covers the latest developments as well as the basic principles and traditional applications of composites, thin films and cement materials." (Materials Today, May 2005)

Spis treści

Conversion table Preface to the Second Edition Preface 1: Introduction 1.1. Conventional failure criteria 1.2. Characteristic brittle failures 1.3. Griffith’s work 1.4. Fracture mechanics References 2: Linear Elastic Stress Field in Cracked Bodies 2.1. Introduction 2.2. Crack deformation modes and basic concepts 2.3. Westergaard method 2.4. Singular stress and displacement fields 2.5. Stress intensity factor solutions 2.6. Three-dimensional cracks Examples Problems Appendix 2.1 References 3: Elastic-Plastic Stress Field in Cracked Bodies 3.1. Introduction 3.2. Approximate determination of the crack-tip plastic zone 3.3. Irwin’s model 3.4. Dugdale’s model Examples Problems References 4: Crack Growth Based on Energy Balance 4.1. Introduction 4.2. Energy balance during crack growth 4.3. Griffith theory 4.4. Graphical representation of the energy balance equation 4.5. Equivalence between strain energy release rate and stress intensity factor 4.6. Compliance 4.7. Crack stability Examples Problems References 5: Critical Stress Intensity Factor Fracture Criterion 5.1 . Introduction 5.2. Fracture criterion 5.3. Variation of Kc with thickness 5.4. Experimental determination of K1c 5.5. Crack growth resistance curve (R-curve) method 5.6. Fracture mechanics design methodology Examples Problems Appendix 5.1 References 6: J-Integral and Crack Opening Displacement Fracture Criteria 6.1. Introduction 6.2. Path-independent integrals 6.3. J-integral 6.4. Relationship between the J-integral and potential energy 6.5. J-integral fracture criterion 6.6. Experimental determination of the J-integral 6.7. Stable crack growth studied by the J-integral 6.8. Crack opening displacement (COD)fracture criterion Examples Problems References 7. Strain Energy Density Failure Criterion: Mixed-Mode Crack Growth 7.1. Introduction 7.2. Volume strain energy density 7.3. Basic hypotheses 7.4. Two-dimensional linear elastic crack problems 7.5. Uniaxial extension of an inclined crack 7.6. Ductile fracture 7.7. The stress criterion Examples Problems References 8: Dynamic Fracture 8.1. Introduction 8.2. Mott’s model 8.3. Stress field around a rapidly propagating crack 8.4. Strain energy release rate 8.5. Crack branching 8.6. Crack arrest 8.7. Experimental determination of crack velocity and dynamic stress intensity factor Examples Problems References 9: Fatigue and Environment-Assisted Fracture 9.1. Introduction 9.2. Fatigue crack propagation laws 9.3. Fatigue life calculations 9.4. Variable amplitude loading 9.5. Environment-assisted fracture Examples Problems References 10: Micromechanics of Fracture 10.1. Introduction 10.2. Cohesive strength of solids 10.3. Cleavage fracture 10.4. Intergranular fracture 10.5. Ductile fracture 10.6. Crack detection methods References 11: Composite Materials 11.1. Introduction 11.2. Through4hickness cracks 11.3. Interlaminar fracture References 12: Thin Films 12.1. Introduction 12.2. Interfacial failure of a bimaterial system 12.3. Steady-state solutions for cracks in bilayers 12.4. Thin films under tension 12.5. Measurement of interfacial fracture toughness References 13: Nanoindentation 13.1. Introduction 13.2. Nanoindentation for measuring Young’s modulus and hardness 13.3. Nanoindentation for measuring fracture toughness 13.4. Nanoindentation for measuring interfacial fracture toughness