Free surface effect on moving crack under impact loading by BEM
type: Item
instance of: scholarly article
title: Free surface effect on moving crack under impact loading by BEM
zbMATH Open document ID: 1026.74077
DOI: 10.1016/S0955-7997(01)00094-7
author: R. Smith
published in: Engineering Analysis with Boundary Elements
publication date: 2002-09-08T00:00:00Z
review text: The paper deals with the implementation of a three-dimensional time-domain boundary integral formulation for a moving center crack in a finite solid under suddenly applied crack face pressure. The variation of dynamic stress intensity factor (DSIF) along the crack front is studied for a finite solid under step loading. The state of stress is evaluated at the crack vertex, where crack front meets the free surface. The author investigates the effect of free surface on DSIF, and estimates the critical intersection angle of the crack front with the free surface at which square-root singularity is restored at the crack vertex under step loading for various speeds of crack propagation.
Mathematics Subject Classification ID: 74S15
Mathematics Subject Classification ID: 74R15
Mathematics Subject Classification ID: 74H35
Mathematics Subject Classification ID: 74M20
zbMATH DE Number: 1797365
zbMATH Keywords: free surface effect
zbMATH Keywords: moving crack
zbMATH Keywords: three-dimensional time-domain boundary integral formulation
zbMATH Keywords: dynamic stress intensity factor
zbMATH Keywords: step loading
zbMATH Keywords: crack vertex
zbMATH Keywords: critical intersection angle
zbMATH Keywords: square-root singularity
reviewed by: Jan Sladek
MaRDI profile type: Publication
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full work available at URL: s0955-7997(01)00094-7
OpenAlex ID: W2041403819
description: scientific article; zbMATH DE number 1797365