Paper Title:

Influence of Biaxial Surface Stress on Mechanical Indenting Deformations

Periodical Materials Science Forum (Volumes 449 - 452)
Main Theme Designing, Processing and Properties of Advanced Engineering Materials
Edited by S.-G. Kang and T. Kobayashi
Pages 93-96
DOI 10.4028/www.scientific.net/MSF.449-452.93
Citation Yun Hee Lee et al., 2004, Materials Science Forum, 449-452, 93
Online since March, 2004
Authors Yun Hee Lee, Jae Il Jang, Dong Il Kwon
Keywords Contact Deformation, Green's Function, Instrumented Indentation, Residual Stress, Stress Directionality
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Abstract

A theoretical model has been proposed to assess quantitative residual stress from a stress-induced shift in an indentation curve, but the assumption in this model of equibiaxial surface stress has obstructed its application to real structures in complex stress states. Thus we investigated the influence of non-equibiaxial surface stress on contact deformation through instrumented indentations of a biaxially strained steel plate in order to extend the model to a general surface stress by considering a ratio of two principal stresses.