Advances in the mechanism of cleavage fracture of low alloy steel at low temperature .2. Fracture model

doi:10.1023/A:1007304900578

	Advances in the mechanism of cleavage fracture of low alloy steel at low temperature .2. Fracture model
	Chen, JH; Wang, GZ; Yan, C; Ma, H; Zhu, L
	1997
发表期刊	INTERNATIONAL JOURNAL OF FRACTURE
ISSN	0376-9429
卷号	83 期号:2 页码:121-138
摘要	The authors discuss in detail the existing cleavage fracture model including the physical model and the statistical model. Based on the discovery that a minimum distance for initiating the cleavage fracture was revealed to have a definite physical meaning, that the stress triaxiality reaches the critical value Te at this distance instead of that the presence of an eligible carbide crack within this distance is assured; a combined criterion for cleavage fracture, i.e. a critical plastic strain (epsilon p greater than or equal to epsilon pc) for initiating a crack nucleus, a critical stress triaxiality (sigma m/<(sigma)over bar>greater than or equal to Tc) for preventing it from blunting and a critical normal stress (sigma yy greater than or equal to sigma f) for its propagation has been proposed to substitute for the criterion of sigma yy greater than or equal to sigma f over a 'characteristic distance' suggested by the RKR model. With regard to the statistical model the authors suggested that it is not necessary to describe the fracture stress distribution by Weibull function. The fracture probability at a given applied load was modified by multiplying a 'remaining probability' taking account of the effect of the preceding: loading process.
DOI	10.1023/A:1007304900578
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Materials Science ; Mechanics
WOS类目	Materials Science, Multidisciplinary ; Mechanics
WOS记录号	WOS:A1997XJ41500002
出版者	KLUWER ACADEMIC PUBL
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/35986
专题	材料科学与工程学院_特聘教授组
通讯作者	Chen, JH
推荐引用方式 GB/T 7714	Chen, JH,Wang, GZ,Yan, C,et al. Advances in the mechanism of cleavage fracture of low alloy steel at low temperature .2. Fracture model[J]. INTERNATIONAL JOURNAL OF FRACTURE,1997,83(2):121-138.
APA	Chen, JH,Wang, GZ,Yan, C,Ma, H,&Zhu, L.(1997).Advances in the mechanism of cleavage fracture of low alloy steel at low temperature .2. Fracture model.INTERNATIONAL JOURNAL OF FRACTURE,83(2),121-138.
MLA	Chen, JH,et al."Advances in the mechanism of cleavage fracture of low alloy steel at low temperature .2. Fracture model".INTERNATIONAL JOURNAL OF FRACTURE 83.2(1997):121-138.

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