Crack initiation behavior in StE690 Steel characterized by strain energy density criterion

Citation
M. Zheng et al., Crack initiation behavior in StE690 Steel characterized by strain energy density criterion, THEOR A FR, 36(2), 2001, pp. 141-145
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Mechanical Engineering
Journal title
THEORETICAL AND APPLIED FRACTURE MECHANICS
ISSN journal
0167-8442 → ACNP
Volume
36
Issue
2
Year of publication
2001
Pages
141 - 145
Database
ISI
SICI code
0167-8442(200109/10)36:2<141:CIBISS>2.0.ZU;2-H
Abstract
The energy density criterion is employed to characterize the crack initiati on of pre-cracked specimens. Three-point-bending specimens are used with no rmalized crack length varying from 0.1 to 0.5. The specimens are made of Ge rman steel StE690. The results show that the local energy density increases with almost the same rate with crack extension as the specimen geometry ch anges. This indicates that the strain energy density can be used to charact erize the onset of crack initiation for pre-cracked specimens. (C) 2001 Els evier Science Ltd. All rights reserved.