Instability criterion of materials in combined stress states and its application to orthogonal cutting process

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	Instability criterion of materials in combined stress states and its application to orthogonal cutting process
	Ma W(马维); Li XW(李相旺); Dai LH(戴兰宏); Ling Z(凌中); Ma, W; Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
发表期刊	INTERNATIONAL JOURNAL OF PLASTICITY
	2012-03-15
卷号	30-31 页码:18-40
ISSN	0749-6419
摘要	The loadings of variable combined stresses may cause different instabilities of materials such as the shear localization instability or non-localized thermal softening instability. The purpose of this paper is to present a theoretical analysis of instability behaviors of material under the loading conditions of combined stresses and apply the analytical results to interpret the removal mechanisms of chip materials in cutting process. First, the perturbation analysis of material instability under the loading conditions of combined stresses and relatively critical conditions are presented, followed by discussions on relations between the instability behaviors of materials and the loading conditions. Then, the removal mechanisms of chip materials in cutting process are studied by numerical simulation. The formation of continuous and discontinuous chips is shown closely related to the plastic flow and instability behaviors of the chip material, and the transformation between the two types of chips is found dependent on the ratio of plastic work dissipated by dilatation deformation and that dissipated by shear deformation.
关键词	Instability Criterion Plastic Collapse Cutting And Forming Asymptotic Analysis Thermomechanical Processes Shear-band Formation Chip Formation Strain Localization Simulation Temperatures Plasticity Prediction Rates Model Flow
学科领域	极端条件下的材料和结构
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000301626400002
项目资助者	The authors acknowledge financial supports from the National Nature Science Foundation of China (Grant No. 10972227) and the National Key Basic Research Program of China (Grant No. 2009CB724401).
课题组名称	LMFS工程地质体力学(LEM)
论文分区	一类
引用统计	被引频次：25[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/311007/46635
专题	流固耦合系统力学重点实验室非线性力学国家重点实验室
通讯作者	Ma, W; Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Ma W,Li XW,Dai LH,et al. Instability criterion of materials in combined stress states and its application to orthogonal cutting process[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2012,30-31:18-40.
APA	马维,李相旺,戴兰宏,凌中,Ma, W,&Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China..(2012).Instability criterion of materials in combined stress states and its application to orthogonal cutting process.INTERNATIONAL JOURNAL OF PLASTICITY,30-31,18-40.
MLA	马维,et al."Instability criterion of materials in combined stress states and its application to orthogonal cutting process".INTERNATIONAL JOURNAL OF PLASTICITY 30-31(2012):18-40.

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