Journal ArticleDOI
Singular behaviour at the end of a tensile crack in a hardening material
TLDR
In this paper, a total deformation theory of plasticity, in conjunction with two hardening stress-strain relations, is used to determine the dominant singularity at the tip of a crack in a tension field.Abstract:
D istributions of stress occurring at the tip of a crack in a tension field are presented for both plane stress and plane strain. A total deformation theory of plasticity, in conjunction with two hardening stress-strain relations, is used. For applied stress sufficiently low such that the plastic zone is very small relative to the crack length, the dominant singularity can be completely determined with the aid of a path-independent line integral recently given by rice (1967). The amplitude of the tensile stress singularity ahead of the crack is found to be larger in plane strain than in plane stress.read more
Citations
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Journal ArticleDOI
Stable crack growth under mixed-mode conditions
K. Bose,P. Ponte Castañeda +1 more
TL;DR: In this paper, the authors considered the problem of a plane strain crack growing quasi-statically in an elastoplastic solid under mixed-mode conditions, and the authors characterized the asymptotic near-tip stress and deformation fields of the problem.
Journal ArticleDOI
Micromechanics simulations of fracture
TL;DR: In this paper, a fracture mechanics framework has been developed for predicting crack initiation and growth in full-scale components and structures from test specimen data, and some analyses are reviewed that use micromechanical modeling to predict fracture toughness from the physics of separation and plastic flow processes.
Journal ArticleDOI
An atomistic study of fracture
TL;DR: The atomistic relaxation method developed by the author to study the core structures of edge and screw dislocations in crystalline solids was used to investigate the configurations of atoms and crack-tip atom cohesion and stress fields in BCC (body centered cubic) and FCC (face-centered cubic) iron as mentioned in this paper.
Journal ArticleDOI
Delayed hydride cracking in Zr–2.5Nb pressure tube material: influence of fabrication routes
TL;DR: In this article, the delayed hydride cracking (DHC) velocity was measured for Zr-2.5Nb alloy pressure tubes manufactured from cold-worked and stress-relieved (CWSR) route and quenched and aged (Q&A) route at 162, 203, and 250
Journal ArticleDOI
Measurement of microscopic plastic-strain distributions in the region of a crack tip
J. H. Underwood,D. P. Kendall +1 more
TL;DR: In this paper, two independent experimental techniques are used to measure the strain distribution within the plastically deformed region around a crack tip, and the measured strain distribution is compared with recent work by Swedlow using a finite element numerical technique.
References
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Book
The mathematical theory of plasticity
TL;DR: In this paper, the solution of two-dimensional non-steady motion problems in two dimensions is studied. But the solution is not a solution to the problem in three dimensions.
Journal ArticleDOI
Numerical Solution of Ordinary and Partial Differential Equations
Journal ArticleDOI
Local yielding and extension of a crack under plane stress
G.T Hahn,A. R. Rosenfield +1 more
TL;DR: In this article, the size of locally yielded regions, the stress distribution, and displacements attending a crack in tension under plane stress have been calculated by extending the work of Dugdale and others.
Journal ArticleDOI
Contained plastic deformation near cracks and notches under longitudinal shear
TL;DR: In this paper, an exact linear elastic-perfectly plastic solution for the problem of sharp notch (or, when the notch angle is zero, a crack) in a plane of finite width subjected to anti-plane stresses inducing a stress and deformation state of longitudinal shear is presented.
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