Weibull stress analysis in local approach to fracture

doi:10.1016/j.tafmec.2019.102379

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Weibull stress analysis in local approach to fracture
	Li YB 3,4; Wang ZH 4; Lei YB 4,5; Qian GA(钱桂安)2; Zhou MJ 3,4; Gao ZL 3,4; Berto F 1
刊名	THEORETICAL AND APPLIED FRACTURE MECHANICS
	2019-12-01
卷号	104 页码:11
关键词	Weibull stress Local approach Fracture T-stress Constraint effect
ISSN号	0167-8442
DOI	10.1016/j.tafmec.2019.102379
通讯作者	Qian, Guian(qianguian@imech.ac.cn) ; Zhou, Mingjue(zhoumingjue@zjut.edu.cn)
英文摘要	As a measure of the probability of cleavage fracture, the Weibull stress within the framework of local approach has the potential capability to predict constraint effects on fracture of structural steels. This paper mainly analyzes Weibull stress considering constraint effect using constraint parameters T-stress and Q. Weibull stress is solved with constraint effects characterized by T-stress for elastic material and Q for elastic plastic material. These solutions are verified with existing solutions for T = 0 and finite element solutions including modified boundary layer models, contact tension models and single-edge bend models. Good agreement has been obtained in all cases. The Weibull stress solutions can be further adopted to predict scale fracture toughness.
分类号	二类
资助项目	National Natural Science Foundation of China[51605435] ; National Natural Science Foundation of China[11602219] ; National Natural Science Foundation of China[11872364] ; CAS Hundred Talents Program
WOS关键词	CLEAVAGE FRACTURE ; ENGINEERING METHODOLOGY ; CONSTRAINT CORRECTIONS ; TRIAXIALITY PARAMETER ; SPECIMEN GEOMETRY ; PLASTIC STRAIN ; T-STRESS ; TOUGHNESS ; FAMILY
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000505101300037
资助机构	National Natural Science Foundation of China ; CAS Hundred Talents Program
其他责任者	Qian, Guian ; Zhou, Mingjue
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81266]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Zhejiang Univ Technol, Minist Educ, Engn Res Ctr Proc Equipment & Remfg, Hangzhou 310032, Zhejiang, Peoples R China; 4.Zhejiang Univ Technol, Inst Proc Equipment & Control Engn, Hangzhou 310032, Zhejiang, Peoples R China; 5.EDF Energy Nucl Generat Ltd, Barnett Way, Gloucester GL4 3R5, England;
推荐引用方式 GB/T 7714	Li YB,Wang ZH,Lei YB,et al. Weibull stress analysis in local approach to fracture[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2019,104:11.
APA	Li YB.,Wang ZH.,Lei YB.,钱桂安.,Zhou MJ.,...&Berto F.(2019).Weibull stress analysis in local approach to fracture.THEORETICAL AND APPLIED FRACTURE MECHANICS,104,11.
MLA	Li YB,et al."Weibull stress analysis in local approach to fracture".THEORETICAL AND APPLIED FRACTURE MECHANICS 104(2019):11.