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An Inverse Analysis of the Erichsen Test Applied for the Automatic Identification of Sheet Materials Behavior

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DOI: 10.4236/eng.2010.27062    5,264 Downloads   9,276 Views   Citations

ABSTRACT

Among the technological tests, the Erichsen drawing test gives a more appropriate material behavior, near the limit of the real manufactured process. In this paper an inverse finite element analysis of the Erichsen test is proposed. The new idea is to use a numerical simulation of the experimental test for the rheological identification of the constitutive equations available for sheet metals alloys. The inverse analysis is based on a robust optimization algorithm and uses simultaneously the experimental test data and the corresponding numerical one. A numerical inverse analysis software named OPTPAR was developed and improved for an automatically coupling with a commercial finite element code charged to simulate the experimental test. Results obtained for a virtual steel alloy will be analyzed numerically in order to validate the finite element model and the identification method. An application to an AA5182 aluminum alloy and a DC03 steel alloy will be presented.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

A. Gavrus, M. Banu, E. Ragneau and C. Maier, "An Inverse Analysis of the Erichsen Test Applied for the Automatic Identification of Sheet Materials Behavior," Engineering, Vol. 2 No. 7, 2010, pp. 471-476. doi: 10.4236/eng.2010.27062.

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