Examining the Effect of Pileup on the Accuracy of Sharp Indentation Testing
Examining the Effect of Pileup on the Accuracy of Sharp Indentation Testing
复制标题
检查堆积对锐利压痕测试精度的影响
DOI:
10.1155/2015/528729
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发表时间:
2015-09
影响因子:
--
通讯作者:
Wei Qiuming
中科院分区:
文献类型:
--
作者:
Tang Zhongbin;Guo Yazhou;Jia Zhaohu;Li Yulong;Wei Qiuming
One essential problem related to instrumented indentation is the effect of pileup, which could introduce significant errors on the measured hardness and elastic modulus. In this work, we have assessed some critical issues associated with instrumented indentation by means of numerical simulation. Dimensional analysis is adopted to acquire the principal governing parameters of the process, such as the ratio of yield strength to elastic modulus and the ratio of indentation depth to maximum penetration depth . The dimensional analysis provides a general understanding on the relationships among these dimensionless variables and their influence on the test results. Three kinds of indenters, that is, conical, Berkovich, and Vickers indenter, are comparatively studied. The dependence of pileup on the dimensionless parameters and its effect on the simulation results are also given. These findings are instructive for measuring the mechanical properties by instrumented indentation, especially when the effect of pileup is involved.
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影响因子:
64.8
作者:
D. Tabor
通讯作者:
D. Tabor
影响因子:
2.7
作者:
Bolshakov, A;Pharr, GM
通讯作者:
Pharr, GM
影响因子:
2.7
作者:
T. Tsui;J. Vlassak;W. Nix
通讯作者:
T. Tsui;J. Vlassak;W. Nix
DOI:
10.1016/s0022-5096(98)00109-4
发表时间:
1999-07-01
影响因子:
5.3
作者:
Huber, N;Tsakmakis, C
通讯作者:
Tsakmakis, C
DOI:
10.1038/scientificamerican01191918-40csupp
发表时间:
1936
期刊:
--
影响因子:
--
作者:
F. C. Lea
通讯作者:
F. C. Lea