文献类型：期刊文献

中文题名：Influence of Residual Stress on the Elastic-plastic Response to Indentation

英文题名：Influence of residual stress on the elastic-plastic response to indentation

作者：Sun, Yuan[1,2]; Wang, Qing-Ming[1]

机构：[1] School of Mechanical Engineering, East China University of Science and Technology, Shanghai 200237, China; [2] School of Mechanical Engineering, Shanghai Dianji University, Shanghai 200240, China

年份：2008

卷号：25

期号：4

起止页码：366

中文期刊名：Journal of Donghua University(English Edition)

外文期刊名：Journal of Donghua University (English Edition)

收录：EI(收录号：20090611897391);Scopus

基金：Supported by the Science Research Fund of Shanghai Education Council(No.06VZ004)

语种：英文

中文关键词：indentation method; residual stress; elastc-plastic indentation properties ; finite element method ; indentation experiment

外文关键词：Elastoplasticity - Indentation - Residual stresses - Materials properties - Piles

摘要：The indentation method is useful in determining the residual stress according to the elastic-plastic properties of materials.So the effect of the residual stress on the elastic-plastic indentation properties of materials was studied by using the finite element method to find better indentation parameters which are strongly induced by the residual stress.The results show that load-depth curve,plastic pile-up,indentation shape,indentation contact stress and indentation residual stress are affected by different residual stress,and these parameters can be used to deduce the residual stress.Also,a special indentation equipment was developed to analyze the elastic-plastic properties of materials with different residual stress,and the experimental results show a good agreement with the FEM results.For practical application,the elastic-plastic indentation properties of materials with unknown residual stress could be obtained by the developed equipment to deduce the residual stress comprehensively.
The indentation method is useful in determining the residual stress according to the elastic-plastic properties of materials. So the effect of the residual stress on the elastic-plastic indentation properties of materials was studied by using the finite element method to find better indentation parameters which are strongly induced by the residual stress. The results show that load-depth curve, plastic pile-up, indentation shape, indentation contact stress and indentation residual stress are affected by different residual stress, and these parameters can be used to deduce the residual stress. Also, a special indentation equipment was developed to analyze the elastic-plastic properties of materials with different residual stress, and the experimental results show a good agreement with the FEM results. For practical application, the elastic-plastic indentation properties of materials with unknown residual stress could be obtained by the developed equipment to deduce the residual stress comprehensively.