The critical void growth ratio and crack initiation condition in the crack tip zone of 20g steel

Zhu, Hanxing ORCID: https://orcid.org/0000-0002-3209-6831, Li, Changchun and Li, Guangxia 1991. The critical void growth ratio and crack initiation condition in the crack tip zone of 20g steel. Engineering Fracture Mechanics 38 (2-3) , pp. 175-183. 10.1016/0013-7944(91)90080-K

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Abstract

In this paper, the elastic-plastic FEM method with a kinematic hardening model has been used to analyse a three-point-bend specimen. The relation between the maximum strain and the crack opening displacement has been investigated. Based on the Rice-Tracey void growth model, the value has been calculated with the numerical integration method. For ductile materials, the cause of void formation and the condition of the void coalescence with the main crack have been discussed and, the results agree well with those of Li Changchun et al. [J. Huazhong Univ. Sci. Technol.17, 139–144 (1989)] and our experiments in this paper.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	Elsevier
ISSN:	0013-7944
Last Modified:	27 Oct 2022 09:08
URI:	https://orca.cardiff.ac.uk/id/eprint/64478

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