Determination of plastic properties by instrumented spherical indentation: Expanding cavity model and similarity solution approach

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	Determination of plastic properties by instrumented spherical indentation: Expanding cavity model and similarity solution approach
	Jiang P(姜鹏); Zhang TH(张泰华); Feng YH(冯义辉); Yang R(杨荣); Liang NG(梁乃刚); Zhang TH
会议录名称	Journal Of Materials Research
	2009
页码	1045-1053
会议名称	International Symposium on Indentation Behavior of Materials
会议日期	2008
会议地点	Hyderabad, INDIA
摘要	The present paper aims to develop a robust spherical indentation-based method to extract material plastic properties. For this purpose, a new consideration of-piling-up effect is incorporated into the expanding cavity model; an extensive numerical study on the similarity Solution has also been performed. As a consequence, two semi-theoretical relations between the indentation response and material plastic properties are derived, with which plastic properties of materials can be identified from a single instrumented spherical indentation curve, the advantage being that this approach no longer needs estimations of contact radius with given elastic modulus. Moreover, the inconvenience in using multiple indenters with different tip angles can be avoided. Comprehensive sensitivity analyses show that the present algorithm is reliable. Also, by experimental verification performed oil three typical materials, good agreement of the material properties between those obtained from the reverse algorithm and experimental data is obtained.
关键词	Stress-strain Curve Energy-based Method Tensile Properties Sharp Indenters Metal Materials Tests Parameters Hardness Extract Steel
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/25348
专题	非线性力学国家重点实验室
通讯作者	Zhang TH
推荐引用方式 GB/T 7714	Jiang P,Zhang TH,Feng YH,et al. Determination of plastic properties by instrumented spherical indentation: Expanding cavity model and similarity solution approach[C]Journal Of Materials Research,2009:1045-1053.

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