Creep Fatigue Fracture Analysis Of Internal Damage

Fatigue failure is a multi-stage process. It begins with the initiation of cracks, and with continued cyclic loading the cracks propagate, finally leading to the rupture of a component or specimen. The demarcation between the above stages is not well-defined. Depending upon the scale of interest, the variation may span three orders of magnitude. For example, to a material scientist an initiated crack may be of the order of a micron, whereas for an engineer it can be of the order of a millimetre. It is not surprising therefore to see that investigation of the fatigue process has followed different paths depending upon the scale of phenomenon under investigation. Interest in the study of fatigue failure increased with the advent of industrial ization. Because of the urgent need to design against fatigue failure, early investiga tors focused on prototype testing and proposed failure criteria similar to design formulae. Thus, a methodology developed whereby the fatigue theories were proposed based on experimental observations, albeit at times with limited scope. This type of phenomenological approach progressed rapidly during the past four decades as closed-loop testing machines became available.

Reflecting his major contributions to the field, Jean Lemaitre’s "Engineering Damage Mechanics" presents simplified and advanced methods organized within a unified framework for designers of any mechanical component. Explains how to apply continuous damage mechanics to failures of mechanical and civil engineering components in ductile, creep, fatigue and brittle conditions. Incorporates many basic examples, while emphasizing key practical considerations such as material parameter identification, and provides perspective on the advantage and disadvantages of various approaches.

Contains papers from the May 1996 Symposium on Applications of Continuum Damage Mechanics (CDM) to Fatigue and Fracture. Papers in Section I deal with various aspects of modeling damage in composite materials, such as high temperature environmental degradation, fatigue, and viscous damage in metal a

Annotation Contains 43 papers from sessions on the fatigue and fracture mechanics areas of design and analysis held during the August 2002 conference. Volume one deals with fatigue under thermal fluctuations and corrosion-assisted growth, global and local approaches, and material evaluation and characterization, while the second volume focuses on components, composites, new methods, probabilistic damage evaluation, and pressurized thermal shock. Specific topics include fatigue crack growth in plate-like structures due to thermal striping, benchmark computations on a typical transition weld of a pressurized water reactor, and the vibration behavior of laminated circular cylindrical shells. No subject index. Annotation c. Book News, Inc., Portland, OR (booknews.com).

This title presents the fundamental elements and theories in fracture and damage analysis, plus the recent research and advances in the development of the analytical and practical approaches required to assess the materials damage and the durability of structures.

Volume is indexed by Thomson Reuters CPCI-S (WoS). This book, which comprises contributions from researchers in 20 countries, was designed to be a forum within which to promote and exchange the latest experimental and theoretical research work on structural integrity, durability and failure analysis; with the emphasis being placed on fracture and damage mechanics.