Nader Abedrabbo

TL;DR: In this article, a coupled thermo-mechanical finite element analysis of the forming process was performed for the temperature range 25-260°C (77-500°F) at different strain rates.

TL;DR: A temperature-dependent anisotropic material model for use in a coupled thermo-mechanical finite element analysis of the forming of aluminum sheets was developed in this article, where the anisotropy properties of the aluminum alloy sheet AA3003-H111 were characterized for a range of temperatures 25 −260 −C (77 −500 −F) and for different strain rates.

TL;DR: In this article, the cutting plane algorithm for the integration of a general class of elasto-plastic constitutive models was used to implement this yield function into the commercial FEM code LS-Dyna as a user material subroutine (UMAT).

TL;DR: In this article, the wrinkling behavior of 6111-T4 aluminum alloys during sheet hydroforming process was numerically and experimentally investigated, and an optimum fluid pressure profile generated by the finite element method, using Barlat's anisotropic yield function, was successfully applied to make the deep-drawn hemispherical cup without tearing and with minimal wrinkling in the flange area.

TL;DR: In this article, 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.