The maximum circumferential tensile stress theory, originally developed for isotropic solids, is extended to an anisotropic one. A two parameter fracture toughness characterization is assumed, and a simplifying relationship among them postulated. The criteria is reformulated in terms of the maximiza
Mixed-mode crack growth in anisotropic media
โ Scribed by E.E. Gdoutos; D.A. Zacharopoulos; E.I. Meletis
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 813 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
The problem of an anisotropic plate with a crack inclined with respect to the principal axes of material symmetry and the direction of the applied uniform uniaxial stress is studied. The local stress field in the vicinity of the crack tip is used in conjunction with the strain energy density theory to analyse the fracture behavior of the anisotropic plate. The dependence of the crack growth angle and the critical applied stress for unstable crack growth on the material properties of the plate and the direction of the crack with respect to the applied stress and the principal axes of material symmetry is disclosed. The relevance of these results for the study of the role of mechanical parameters in the crack propagation process of the environment-assisted cracking phenomenon is discussed.
๐ SIMILAR VOLUMES
The problem of slow stable growth of an inclined crack in a plate subjected to uniaxial tension is studied by the strain energy density criterion. The stable crack growth process is simulated by predicting a series of crack growth steps corresponding to a piecewise loading increase when material ele
Ah&act--This work is aimed at developing a predictive capability for the quantitative assessment of crack growth under fatigue loadings. The crack growth rate relation, AalAN, may involve all three stress intensity factors k& such that the direction of crack growth may not be known in advance and mu
A simple numerical method is presented for analysing the mixed mode of rectilinear anisotropic solids. The method is formulated on the basis of a finite element and the crack closure integral approach in conjunction with fundamental relationships in fracture mechanics. A simple and efficient solutio
The maximum strain theory for mixed mode crack propagation in anisotropic solids is derived. Based on the Sih and Liebowitz's solution of the near crack tip stress distribution in anisotropic solids, the macroscopic strength is discussed via a maximum circumferential strain factor. The theory is com