The proceedings of the JSME annual meeting
Online ISSN : 2433-1325
2004.1
Session ID : 904
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Plastic Properties Determination by Using Plural Indenters
Nagahisa OGASAWARANorimasa Chiba
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

A determination method for elastic-plastic material constants that obey the power-law hardening rule, from a couple of indentation tests, is proposed. Π function indicates the relation between reduced Young's modulus E, load curvature C, representative stress σ, and indenter apex angles φ. The function is determined by Π theory and two solutions for a sharp indenter penetration, the elastic solution and the rigid/perfectly plastic solution. With Π function and another function which relates representative strain ε, to indenter apex angle, two or more experiments lead points in plastic region respectively, and the stress-strain curve is identified.

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© 2004 The Japan Society of Mechanical Engineers
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