VISUALIZATION OF THE PLASTICITY-INDUCED CRACK CLOSURE UNDER PLANE-STRAIN CONDITIONS

Authors
REINHARD P RIEMELMOSER FO
Citation
P. Reinhard et Fo. Riemelmoser, VISUALIZATION OF THE PLASTICITY-INDUCED CRACK CLOSURE UNDER PLANE-STRAIN CONDITIONS, Engineering fracture mechanics, 60(3), 1998, pp. 315-322
Citations number
25
Categorie Soggetti
Mechanics
Journal title
Engineering fracture mechanics → ACNP
ISSN journal
00137944
Volume
60
Issue
3
Year of publication
1998
Pages
315 - 322
Database
ISI
SICI code
0013-7944(1998)60:3<315:VOTPCC>2.0.ZU;2-V
Abstract
A simplified dislocation model is used as an aid to visualize the deve loped plastic wedge under plane strain conditions. In contradiction to the plane stress case under plane strain conditions the plastic wedge is limited to the immediate vicinity of the crack tip. It is shown th at the extra volume in the vicinity of the crack tip is caused by a pl astic shearing of the material in the wake of the crack. (C) 1998 Else vier Science Ltd. All rights reserved.