The identification method of hardening parameters specifying stress-strain curve is proposed by applying spherical indentation test and measuring the penetration depth during loading and unloading. The loading program is composed of a geometric sequence of loading and partial unloading steps from which the variation of permanent penetration with load level is determined. This data is used for specification of two parameters k and m occurring in the plastic hardening curve where denotes the plastic strain.
Identification of Hardening Parameters of Metals From Spherical Indentation Tests
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division April 17, 2000; revised manuscript received March 20, 2001. Associate Editor: N. Chandra.
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Kucharski , S., and Mro´z, Z. (March 20, 2001). "Identification of Hardening Parameters of Metals From Spherical Indentation Tests ." ASME. J. Eng. Mater. Technol. July 2001; 123(3): 245–250. https://doi.org/10.1115/1.1375161
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