Compliance Ratio Method of Estimating Crack Length in Dynamic Fracture Toughness Tests PDF Download
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Author: WJ. Wright Publisher: ISBN: Category : Crack length measurement Languages : en Pages : 19
Book Description
Crack extension during fracture toughness tests of ferritic structural steels cannot be determined from measurements of unloading compliance or electric potential change when the specimen is dynamically loaded. Measurements of crack extension in fracture toughness tests are also very difficult when the test temperature is high or the test environment is aggressive. To circumvent this limitation, researchers for years have been developing key curve and normalization function methods to estimate crack extension in standard elastic-plastic fracture toughness test geometries.
Author: WJ. Wright Publisher: ISBN: Category : Crack length measurement Languages : en Pages : 19
Book Description
Crack extension during fracture toughness tests of ferritic structural steels cannot be determined from measurements of unloading compliance or electric potential change when the specimen is dynamically loaded. Measurements of crack extension in fracture toughness tests are also very difficult when the test temperature is high or the test environment is aggressive. To circumvent this limitation, researchers for years have been developing key curve and normalization function methods to estimate crack extension in standard elastic-plastic fracture toughness test geometries.
Author: K. Ravi-Chandar Publisher: Elsevier ISBN: 0080472559 Category : Science Languages : en Pages : 265
Book Description
Dynamic fracture in solids has attracted much attention for over a century from engineers as well as physicists due both to its technological interest and to inherent scientific curiosity. Rapidly applied loads are encountered in a number of technical applications. In some cases such loads might be applied deliberately, as for example in problems of blasting, mining, and comminution or fragmentation; in other cases, such dynamic loads might arise from accidental conditions. Regardless of the origin of the rapid loading, it is necessary to understand the mechanisms and mechanics of fracture under dynamic loading conditions in order to design suitable procedures for assessing the susceptibility to fracture. Quite apart from its repercussions in the area of structural integrity, fundamental scientific curiosity has continued to play a large role in engendering interest in dynamic fracture problems In-depth coverage of the mechanics, experimental methods, practical applications Summary of material response of different materials Discussion of unresolved issues in dynamic fracture
Author: X. Chen Publisher: ISBN: Category : Alloys Languages : en Pages : 21
Book Description
The elastic compliance from unloading/reloading sequences in a load-displacement record estimates well crack length in elastic-plastic fracture toughness tests of compact tension [C(T)] and bending type specimens. The need for partial unloading of the specimen makes it difficult to run the test under static loading and impossible under either dynamic loading or very high temperatures. Furthermore, fracture toughness testing in which crack length is determined from elastic compliance requires high precision testing equipment and highly skilled technicians. As a result, such tests are confined usually to research laboratories and seldom used under production settings.
Author: National Research Council (U.S.). Committee on Rapid Inexpensive Tests for Determining Fracture Toughness Publisher: National Academies ISBN: Category : Technology & Engineering Languages : en Pages : 266
Author: John E. Srawley Publisher: ISBN: Category : Fracture mechanics Languages : en Pages : 80
Book Description
A comprehensive survey is presented of current methods of fracture toughness testing that are based on linear elastic fracture mechanics. General principles are discussed in relation to the basic two-dimensional crack stress field model and in relation to real three-dimensional specimens. The designs and necessary dimensions of specimens for mixed mode and opening mode (plane strain) crack toughness measurement are considered in detail. Methods of test instrumentation and procedure are described. Expressions for the calculation of crack toughness values are given for the common types of specimens.
Author: WJ. Wright
Author: WJ. Wright
Author: Hernando C. Tjiang
Author: Ravinder Chona
Author: Steven R. Daniewicz
Author: K. Ravi-Chandar
Author: X. Chen
Author: 
Author: National Research Council (U.S.). Committee on Rapid Inexpensive Tests for Determining Fracture Toughness
Author: John E. Srawley
Author: Melvin H. Jones