Measuring Residual Stress of 304 Austenitic Stainless Steel by Spherical Indentation

Hong Ping Jin; Wen Yu Yang; Lin Yan

doi:10.4028/www.scientific.net/AMR.146-147.97

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Measuring Residual Stress of 304 Austenitic Stainless Steel by Spherical Indentation

Abstract:

In this study, we have used the FE method to investigate the effect of in-plane residual stress and strain-hardening exponent on the indenter load, indentation work and residual depth. Based on the reverse analysis, the 304 stainless steel’s residual stress and strain-hardening exponent can be measured fromone simple indentation test by using spherical indenter. The comparison between residual stress or strain-hardening predicted from reverse analysis and the input residual stress or strain-hardening used in numerical indentation experiments shows good agreement.