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In this paper, a new methodology to extract the plastic properties of metallic materials from an instrumented spherical indentation loading curve has been proposed using dimensional analysis and finite element computation. The representative strain ε r as defined in [Acta Mater 49 (2001) 3899] for sharp indentation has been extended to spherical indentation, and identified as the function...
In this paper, the stability of the reverse dual indenter algorithms proposed by Chollacoop et al. [Acta Mater. 51 (2003) 3713] to determine the plastic properties of materials has been explored further by using the mathematical theory of inverse problems. To identify the representative stress σ εr , an explicit form of the condition number has been derived which can be used directly...
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