Crack Tip Fields with Strain Gradient Effects

IMECH-IR > 力学所知识产出(1956-2008)

	Crack Tip Fields with Strain Gradient Effects
	Chen SH(陈少华); Wang ZQ(王自强); Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
发表期刊	International Journal of Nonlinear Sciences and Numerical Simulation
	2002
卷号	3 期号:3-4 页码:689-693
ISSN	1565-1339
摘要	In this paper, a kind of strain gradient theory proposed by Chen and Wang (2001) is briefly introduced and is used to analyze the crack tip field in homogeneous materials and interface crack tip field with the help of finite element methods. Differences are found between the two kinds of crack tip fields. For the crack tip field in homogeneous materials, the whole field consists of a strain gradient dominance zone, a classical plasticity field and a K field. While for the interface crack tip field, there are only the strain gradient dominance zone and a K field and the classical plasticity field hardly exists. The reason will be given in the present paper. For both kinds of crack tip fields, the effective stresses near the crack tip are much higher than the counterparts in the classical field, which provides an explanation to the experimental observation of cleavage fracture in ductile materials (Elssner et al., 1994).
学科领域	力学
收录类别	SCI
语种	英语
WOS记录号	WOS:000176903800119
关键词[WOS]	FRACTURE ; PLASTICITY ; SOLIDS
WOS研究方向	Engineering ; Mathematics ; Mechanics ; Physics
WOS类目	Engineering, Multidisciplinary ; Mathematics, Applied ; Mechanics ; Physics, Mathematical
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/15484
专题	力学所知识产出(1956-2008)
通讯作者	Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Chen SH,Wang ZQ,Chen, SH . Crack Tip Fields with Strain Gradient Effects[J]. International Journal of Nonlinear Sciences and Numerical Simulation,2002,3,3-4,:689-693.
APA	Chen SH,Wang ZQ,&Chen, SH .(2002).Crack Tip Fields with Strain Gradient Effects.International Journal of Nonlinear Sciences and Numerical Simulation,3(3-4),689-693.
MLA	Chen SH,et al."Crack Tip Fields with Strain Gradient Effects".International Journal of Nonlinear Sciences and Numerical Simulation 3.3-4(2002):689-693.

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