Cohesive zone modeling for model III crack based on near tip stress field

doi:10.16183/j.cnki.jsjtu.2017.01.018

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Cohesive zone modeling for model III crack based on near tip stress field
	Duan, Hongyan; Wang, Zhiming; Sang, Yuancheng
刊名	Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University
	2017
卷号	51 期号:1 页码:113-118
关键词	Elasticity Elastoplasticity Fracture mechanics Hardening Stress concentration Yield stress Antiplane shear Cohesive zone model Elastic plastic fracture mechanics Elastic-plastic deformation Fracture prediction Hardening materials Small-scale yielding Stress-strain field
ISSN号	10062467
DOI	10.16183/j.cnki.jsjtu.2017.01.018
英文摘要	A cohesive zone model for model III crack in power-law hardening was studied under small scale yielding conditions. The cohesive traction-separation displacement in the cohesive zone and the stress-strain fields were obtained. The results show that the stress distribution in a large portion of the plastic zone is significantly altered with the introduction of the cohesive zone, for a modest hardening material, if the peak cohesive traction is less than 2.5 times yield stress, which implies that the disparity in terms of the fracture prediction between the classical approach of elastic-plastic fracture mechanics and the cohesive traction becomes infinitely large. When the peak cohesive traction becomes infinitely large, the stress distribution with and without the cohesive zone converges. © 2017, Shanghai Jiao Tong University Press. All right reserved.
语种	中文
出版者	Shanghai Jiao Tong University, 2200 Xietu Rd no.25,, Shanghai, 200032, China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114365]
专题	机电工程学院
作者单位	School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Duan, Hongyan,Wang, Zhiming,Sang, Yuancheng. Cohesive zone modeling for model III crack based on near tip stress field[J]. Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University,2017,51(1):113-118.
APA	Duan, Hongyan,Wang, Zhiming,&Sang, Yuancheng.(2017).Cohesive zone modeling for model III crack based on near tip stress field.Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University,51(1),113-118.
MLA	Duan, Hongyan,et al."Cohesive zone modeling for model III crack based on near tip stress field".Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University 51.1(2017):113-118.