Determination of the driving force acting on a kinked crack

Authors
Le, KC Schutte, H Stumpf, H
Citation
Kc. Le et al., Determination of the driving force acting on a kinked crack, ARCH APPL M, 69(5), 1999, pp. 337-344
Citations number
22
Categorie Soggetti
Mechanical Engineering
Journal title
ARCHIVE OF APPLIED MECHANICS
ISSN journal
09391533 → ACNP
Volume
69
Issue
5
Year of publication
1999
Pages
337 - 344
Database
ISI
SICI code
0939-1533(199906)69:5<337:DOTDFA>2.0.ZU;2-R
Abstract
A variational principle is formulated for a body containing a crack in equi librium. An expression for the driving force acting on the crack admitting nontangential virtual crack extensions is derived. As a consequence of a va riational principle, crack equilibrium criterion under mixed-mode loading c onditions is obtained. For general 3-D problems, the magnitude as well as t he direction of the driving force are precisely determined. Fracture locus for three combined modes is calculated.