Elements of Fracture Mechanics

Published on Sep 5, 2013
路 DOI :10.1002/9781118671023.CH4
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Abstract
馃摉 Papers frequently viewed together
1990
1 Author (T L Anderson)
References4
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#1Andr茅s Valiente (UPM: Technical University of Madrid)H-Index: 10
#2Manuel Elices (UPM: Technical University of Madrid)H-Index: 60
Abstract The details of two failures of prestressed steel bars are reported and a failure analysis is carried out using Linear Elastic Fracture Mechanics: the fracture toughness was measured using two standardized procedures and the pertinent stress intensity factor computed by numerical methods. The analysis of the failures show that the usual design requirements for prestressing bars fail to warn against brittle failures if damage exists. Some procedures, based on the concept of damage toleran...
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Abstract : An integral is exhibited which has the same value for all paths surrounding a class of notches in two-dimensional deformation fields of linear or non-linear elastic materials. The integral may be evaluated almost by inspection for a few notch configurations. Also, for materials of the elastic- plastic type (treated through a deformation rather than incremental formulation) , with a linear response to small stresses followed by non-linear yielding, the integral may be evaluated in term...
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Abstract Y ielding at the end of a slit in a sheet is investigated, and a relation is obtained between extent of plastic yielding and external load applied. To verify this relation, panels containing internal and edge slits were loaded in tension and lengths of plastic zones were measured.
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In the course of an investigation of the effect of surface scratches on the mechanical strength of solids, some general conclusions were reached which appear to have a direct bearing on the problem of rupture, from an engineering standpoint, and also on the larger question of the nature of intermolecular cohesion. The original object of the work, which was carried out at the Royal Aircraft Estab颅lishment, was the discovery of the effect of surface treatment鈥攕uch as, for instance, filing, grindin...
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