Time-Dependent Fracture MechanicsIntended 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-britttle 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. |
Contents
3 | 22 |
5 | 33 |
Scale and Compound Specimens | 42 |
The Constraint Issue | 63 |
Warm PreStressing Effect | 69 |
Choice of Steel Qualities with Regard to the Risk | 76 |
Probabilistic Integrity Analysis of Mechanical Components | 136 |
THE STATIONARY CRACK | 181 |
THE MOVING CRACK | 227 |
CREEP LAWS AND ELEMENTARY | 275 |
Appendix I | 340 |
FATIGUE AND CREEPFATIGUE | 401 |
440 | |
455 | |
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Common terms and phrases
American Society analysis ASME ASTM ASTM STP behavior brittle cavitation cavity Charpy cleavage component considered constant constitutive equation crack arrest crack extension crack growth crack initiation crack length crack propagation crack speed crack tip crack-growth rate creep crack creep deformation curve cycle damage deformation determined displacement ductile effect elastic elastic-plastic energy Engng equation experimental exponent expression failure fatigue FIGURE finite-element fracture mechanics fracture toughness function geometry given grain boundary growth rate impact integral K₁ loading rate Mech metals method microcracks mode normalized notch nucleation obtained parameter plane strain plastic strain plastic zone radius ratio reference stress regime Riedel rupture shear band shear stress Society for Testing specimen static steel strain rate stress field stress-intensity factor surface temperature tensile stress Testing and Materials thermal thickness tion transition uni-axial velocity void yield strength yield stress