Effects of 'sinking in' and 'piling up' on estimating the contact area under load in indentation

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	Effects of 'sinking in' and 'piling up' on estimating the contact area under load in indentation
	Cheng YT; Zheng ZM(郑哲敏)
刊名	Philosophical Magazine Letters
	1998
卷号	78 期号:2 页码:115-120
ISSN号	0950-0839
通讯作者	Cheng, YT (reprint author), GM Corp, Ctr Res & Dev, Phys & Phys Chem Dept, Warren, MI 48090 USA.
中文摘要	The phenomena of the 'piling up' and 'sinking-in' of surface profiles in conical indentation in elastic-plastic solids with work hardening are studied using dimensional and finite-element analysis. The degree of sinking in and piling up is shown to depend on the ratio of the initial yield strength Y to Young's modulus E and on the work-hardening exponent n. The widely used procedure proposed by Oliver and Pharr for estimating contact depth is then evaluated systematically. By comparing the contact depth obtained directly from finite-element calculations with that obtained from the initial unloading slope using the Oliver-Pharr procedure, the applicability of the procedure is discussed.
学科主题	力学
类目[WOS]	Physics, Condensed Matter
研究领域[WOS]	Physics
关键词[WOS]	HARDNESS
收录类别	SCI
语种	英语
WOS记录号	WOS:000075028600006
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/15907]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Cheng YT,Zheng ZM. Effects of 'sinking in' and 'piling up' on estimating the contact area under load in indentation[J]. Philosophical Magazine Letters,1998,78(2):115-120.
APA	Cheng YT,&郑哲敏.(1998).Effects of 'sinking in' and 'piling up' on estimating the contact area under load in indentation.Philosophical Magazine Letters,78(2),115-120.
MLA	Cheng YT,et al."Effects of 'sinking in' and 'piling up' on estimating the contact area under load in indentation".Philosophical Magazine Letters 78.2(1998):115-120.