A new hardening law for strain gradient plasticity

doi:10.1016/S1359-6454(00)00216-0

IMECH-IR > 力学所知识产出(1956-2008)

	A new hardening law for strain gradient plasticity
	Chen SH(陈少华); Wang ZQ(王自强); Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
发表期刊	Acta Materialia
	2000
卷号	48 期号:16 页码:3997-4005
ISSN	1359-6454
摘要	A new hardening law of the strain gradient theory is proposed in this paper, which retains the essential structure of the incremental version of conventional J(2) deformation theory and obeys thermodynamic restrictions. The key feature of the new proposal is that the term of strain gradient plasticity is represented as an internal variable to increase the tangent modulus. This feature which is in contrast to several proposed theories, allows the problem of incremental equilibrium equations to be stated without higher-order stress, higher-order strain rates or extra boundary conditions. The general idea is presented and compared with the theory given by Fleck and Hutchinson (Adv. in Appl. Mech. (1997) 295). The new hardening law is demonstrated by two experimental tests i.e. thin wire torsion and ultra-thin beam bending tests. The present theoretical results agree well with the experiment results.
学科领域	力学
DOI	10.1016/S1359-6454(00)00216-0
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000165258900001
关键词[WOS]	THIN-FILMS ; POLYCRYSTALS ; HARDNESS ; WORK
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
引用统计	被引频次：93[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/311007/16391
专题	力学所知识产出(1956-2008)
通讯作者	Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Chen SH,Wang ZQ,Chen, SH . A new hardening law for strain gradient plasticity[J]. Acta Materialia,2000,48,16,:3997-4005.
APA	陈少华,王自强,&Chen, SH .(2000).A new hardening law for strain gradient plasticity.Acta Materialia,48(16),3997-4005.
MLA	陈少华,et al."A new hardening law for strain gradient plasticity".Acta Materialia 48.16(2000):3997-4005.

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