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This book consists of a collection of lectures prepared for a short course on "Fracture Mechanics Methodology" sponsored by the Advisory Group for Aerospace Research and Development (AGARD), part of the North Atlantic Treaty Organization (NATO). The course was organized jointly by Professor George C. Sih of the Institute of Fracture and Solid Mechanics at Lehigh University in the United States and Professor Luciano Faria from Centro de Mecanica e de Materiais das Universidade de Lisboa in Portugal. It was held in Lisbon from June 1 to 4, 1981. Dr. Robert Badaliance from the McDonnell Aircraft Company in St. Louis and Dr. Oscar Orringer from the Depart ment of Transportation in Cambridge are the other US lecturers while Professor Carlos Moura Branco from Portugal also lectured. The audience consisted of engineers from the Portuguese industry with a large portion from the aeronautical sector and others who are particularly interested to apply the fracture mechanics discipline for analyzing the integrity of structural components and fracture control methods. Particular. emphases were given to the fundamentals of fracture mechanics as applied to aircraft structures.
We dedicate this text to Drs. Ernest E. Aegerter, a pathologist, and John A. Kirkpatrick Jr., a radiologist. They were among the principal founders of the ?eld of skeletal pathology and radiology. During their time, their residents and colleagues knew them as great educators with a dedication and a passion for their work. Their textbook, Orthopedic Diseases, published initially in 1958 was among the ?rst interdisciplinary works devoted to this ?eld. Dr. Aegerter and Dr. Kirkpatrick illuminated many aspects of the ?eld of radiology. Today, with the advent of new technologies, this ?eld has grown to include not only diseases that affect the skeleton but also those that affect muscles, ligaments, tendons, and also the cartilaginous structures within joints. With this text we intend to carry on Dr. Aegerter and Dr. Kirkpatrick’s tradition. We have recruited only well-known musculoskeletal radiologists and pathologists to participate in the writing of this book. Each author has been carefully selected for his expertise on the topic about which he’s been asked to contribute. Each author is known as an experienced and seasoned teacher. Each author has made a mark on the ?eld.
Recognized experts from around the world offer guidance on the treatment of distal radius fractures and carpal injuries. Practical and comprehensive, this user-friendly format features practical tips and potential pitfalls to optimize outcomes. The DVD contains videos of 44 techniques.
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The assessment of crack initiation and/or propagation has been the subject of many past discussions on fracture mechanics. Depending on how the chosen failure criterion is combined with the solution of a particular theory of continuum mechanics, the outcome could vary over a wide range. Mod elling of the material damage process could be elusive if the scale level of observation is left undefined. The specification of physical dimension alone is not sufficient because time and temperature also play an intimate role. It is only when the latter two variables are fixed that failure predictions can be simplified. The sudden fracture of material with a pre-existing crack is a case in point. Barrin...