Dynamic crack growth along an elastoplastic bimaterial interface
type: Item
instance of: scholarly article
title: Dynamic crack growth along an elastoplastic bimaterial interface
zbMATH Open document ID: 0884.73055
DOI: 10.1007/BF01262523
author: O. Diekmann
published in: Acta Mechanica
publication date: 1998-04-14T00:00:00Z
review text: We study the near-tip stress and deformation rate fields of a crack dynamically propagating along an interface between dissimilar elastic-plastic bimaterials. The elastic-plastic materials are characterised by the \(J_2\)-flow theory with linear plastic hardening. The solutions are assumed to be of variable-separable form with a power-law singularity in the radial direction. The dynamic crack analysis shows that the mixity of the near-tip field is mainly determined by the given material parameters and affected slightly by the crack propagation velocity. A significant variation of the mixity is observed near to the coalescing point of the tensile and shear solutions. The strength of the singularity is determined by the smaller strain-hardening alone, and dynamic inertia decreases the stress intensity. The asymptotic solutions reveal that the crack propagation velocity changes only the stress field of the tensile mode significantly.
Mathematics Subject Classification ID: 74R99
Mathematics Subject Classification ID: 74H99
zbMATH DE Number: 1019272
zbMATH Keywords: stress field of tensile mode
zbMATH Keywords: \(J(2)\)-flow theory
zbMATH Keywords: linear plastic hardening
zbMATH Keywords: power-law singularity
zbMATH Keywords: crack propagation velocity
zbMATH Keywords: asymptotic solutions
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 1019272