CRACK-ARREST AT A TEAR STRAP UNDER MIXED-MODE LOADING

Authors
SHIMAMOTO A KOSAI M KOBAYASHI AS
Citation
A. Shimamoto et al., CRACK-ARREST AT A TEAR STRAP UNDER MIXED-MODE LOADING, Engineering fracture mechanics, 47(1), 1994, pp. 59
Citations number
12
Categorie Soggetti
Mechanics
Journal title
Engineering fracture mechanics → ACNP
ISSN journal
00137944
Volume
47
Issue
1
Year of publication
1994
Database
ISI
SICI code
0013-7944(1994)47:1<59:CAATSU>2.0.ZU;2-P
Abstract
A hybrid experimental-numerical investigation was undertaken to establ ish a crack kinking criterion and hence crack arrest at a tear strap u nder mixed mode crack tip deformation. Experimentally determined crack velocities and crack paths from 2024-T3 and 7075-T6 aluminum alloys, cruciform fracture specimens, 0.81 mm thick with a 25.4 mm wide and 0. 81 mm thick tear strap, were input to a dynamic finite element code to compute the necessary fracture parameters. These results were then us ed to verify three-parameter crack extension and curving criteria unde r mixed mode loading.