Time-Dependent Fracture Mechanics, Softcover reprint of the original 1st ed. 2001 Mechanical Engineering Series

Intended for engineers, researchers, and graduate students dealing with materials science, structural design, and nondestructive testing and evaluation, this book represents a continuation of the author's "Fracture Mechanics" (1997). It will appeal to a variety of audiences: The discussion of design codes and procedures will be of use to practicing engineers, particularly in the nuclear, aerospace, and pipeline industries; the extensive bibliography and discussion of recent results will make it a useful reference for academic researchers; and graduate students will find the clear explanations and worked examples useful for learning the field. The book begins with a general treatment of fracture mechanics in terms of material properties and loading and provides up-to-date reviews of the ductile-brittle transition in steels and of methods for analyzing the risk of fracture. It then discusses the dynamics of fracture and creep in homogeneous and isotropic media, including discussions of high-loading-rate characteristics, the behavior of stationary cracks in elastic media under stress, and the propagation of cracks in elastic media. This is followed by an analysis of creep and crack initiation and propagation, describing, for example, the morphology and incubation times of crack initiation and growth and the effects of high temperatures. The book concludes with treatments of cycling deformation and fatigue, creep-fatigue fractures, and crack initiation and propagation. Problems at the end of each chapter serve to reinforce and test the student's knowledge and to extend some of the discussions in the text. Solutions to half of the problems are provided.

1. Structural-Integrity Assessment: The Relevant Fracture-Toughness Evaluation.- 1.1 The Energy Approach: The Ductile-to-Brittle Transition (DBT) and the Fracture Analysis Diagram (FAD).- 1.2 Low-Toughness Materials.- 1.3 Determination of Dynamic Fracture Toughness by Instrumented Pre-Cracked Charpy Impact Testing.- 1.4 The Ductile to Brittle Transition and Fracture Toughness.- 1.5 Measurement of Flow and Fracture Behaviors Using Miniature-Scale and Compound Specimens.- Appendix I: The Constraint Issue.- Appendix II: Warm Pre-Stressing Effect.- Appenidix III: Choice of Steel Qualities with Regard to the Risk of Brittle Fracture.- 2. Structural Integrity Assessment: The Relevant Loading Evaluation.- 2.1 Procedures for Pure Mechanical Loading at Low Temperature.- 2.2 Procedures for Combined Loading.- 2.3 Safety Margins.- 2.4 Assessment Methods at High Temperature.- Appendix I: Probabilistic Integrity Analysis of Mechanical Components.- 3. Dynamic Fracture: Elementary Dynamics and Microscopic Fracture.- 3.1 Dynamic Behavior of a Material.- 3.2 Fracture Micromechanisms.- 4. Dynamic Fracture: The St Ationary Crack.- 4.1 Linear Elastic Analysis of the Two—Dimensional Crack.- 4.2 Crack Speed and Thermal-Field Measurements.- 4.3 Testing Methods and Fracture Criteria in Mode 1.- 4.4 Main Results on Toughness.- 4.5 Local Approach to Fracture and Continuum Damage Mechanics.- 4.6 Testing Methods and Fracture Criteria in Mode II.- 4.7 Mixed-Mode Dynamic Crack Initiation.- 5. Dynamic Fracture: The Moving Crack.- 5.1 Linear Elastic Modeling of Crack Growth.- 5.2 Elastic-Plastic Modeling ofCrack Growth.- 5.3 Mechanistic Models of Crack Growth.- 6. Creep Fracture: Creep Laws And Elementary Microscopic Fracture Models.- 6.1 Creep Flow Behavior.- 6.2 Mechanistic-Creep Failure Analysis.-6.3 Fracture Parameters.- 6.4 Continuum-Damage Mechanics.- Appendix I.- Appendix II.- Appendix III.- 7. Creep Fracture Mechanics.- 7.l The Stationary Crack.- 7.2 The Moving Crack.- 7.3. Relationship Between Micromechanisms and Macromechanics.- 7.4. Recommended Practice for Determining Creep-Crack Growth in a Material.- 7.5. The Stationary Crack Under Mixed-Mode Loading.- 8. Fatigue and Creep-Fatigue.- 8.1 Fatigue, Creep, and Creep-Fatigue Damage.- 8.2 Fatigue, Creep, and Creep-Fatigue Crack Propagation.- Guide for Further Reading and Bibliography.- Answers to Selected Exercises.