Some aspects of crack behavior in a nonhomogeneous material

Lawrence Schovanec; W. T. Timmons

doi:10.1016/0013-7944(89)90072-6

Some aspects of crack behavior in a nonhomogeneous material

Lawrence Schovanec, W. T. Timmons

President's Office

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4 Scopus citations

Abstract

The energy release rate is calculated for an antiplane shear crack in a nonhomogeneous elastic medium whose shear modulus corresponds to a reduced rigidity about the crack front. Plastic zones about the crack tip are calculated based upon the yielding condition of von Mises and the effect of decreasing rigidity upon these zones is displayed. In addition the crack problem is analysed within the framework of the strain energy density theory and the maximum cleavage stress theory.

Original language	English
Pages (from-to)	745-751
Number of pages	7
Journal	Engineering Fracture Mechanics
Volume	33
Issue number	5
DOIs	https://doi.org/10.1016/0013-7944(89)90072-6
State	Published - 1989

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abstract = "The energy release rate is calculated for an antiplane shear crack in a nonhomogeneous elastic medium whose shear modulus corresponds to a reduced rigidity about the crack front. Plastic zones about the crack tip are calculated based upon the yielding condition of von Mises and the effect of decreasing rigidity upon these zones is displayed. In addition the crack problem is analysed within the framework of the strain energy density theory and the maximum cleavage stress theory.",

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AB - The energy release rate is calculated for an antiplane shear crack in a nonhomogeneous elastic medium whose shear modulus corresponds to a reduced rigidity about the crack front. Plastic zones about the crack tip are calculated based upon the yielding condition of von Mises and the effect of decreasing rigidity upon these zones is displayed. In addition the crack problem is analysed within the framework of the strain energy density theory and the maximum cleavage stress theory.

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