Analysis of micro-indentation problem of a soft film on a hard substrate

IMECH-IR > 力学所知识产出(1956-2008)

	Analysis of micro-indentation problem of a soft film on a hard substrate
	Yi DK; Wang ZQ(王自强)
会议录名称	Advances In Heterogeneous Material Mechanics 2008
	2008
页码	342-347
会议名称	International Conference on Heterogeneous Material Mechanics (ICHMM)
会议日期	JUN 03-08, 2008
会议地点	Huangshan, PEOPLES R CHINA
摘要	Two stages have been observed in micro-indentation experiment of a soft film on a hard substrate. In the first stage, the hardness of the thin film decreases with increasing depth of indentation when indentation is shallow; and in the second stage, the hardness of the film increases with increasing depth of indentation when the indenter tip approaches the hard substrate. In this paper, the new strain gradient theory is used to analyze the micro-indentation behavior of a soft film on a hard substrate. Meanwhile, the classic plastic theory is also applied to investigating the problem. Comparing two theoretical results with the experiment data, one can find that the strain gradient theory can describe the experiment data at both the shallow and deep indentation depths quite well, while the classic theory can't explain the experiment results.
关键词	Strain Gradient Theory Size Effect Soft Film Hard Substrate Plasticity
WOS记录号	WOS:000257167700084
收录类别	CPCI-S ; EI
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/25406
专题	力学所知识产出(1956-2008)
通讯作者	Yi DK
推荐引用方式 GB/T 7714	Yi DK,Wang ZQ. Analysis of micro-indentation problem of a soft film on a hard substrate[C]Advances In Heterogeneous Material Mechanics 2008,2008:342-347.

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