Optimization methods for the tube hydroforming process applied to advanced high-strength steels with experimental verification

Nader Abedrabbo, Michael Worswick, Robert Mayer, and Isadora van Riemsdijk
Journal of Materials Processing Technology, Volume 209, Issue 1, 1 January 2009, pp. 110-123.

In this paper, an optimization method linked with the finite element method is presented for developing forming parameters of the tube hydroforming (THF) process for several advanced high-strength steel (AHSS) materials. The goal of this research was to maximize formability by identifying the optimal internal hydraulic pressure and end-feed rate, while satisfying the failure limits defined by the forming limit diagram (FLD). The optimization software HEEDS was used in combinaton with the nonlinear structural finite element code LS-DYNA to carry out the investigation.
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