Experimental and simulated comparison of finite element models of bimetallic sheets for deep drawing process

Abstract

In this study, different techniques using for modeling of bimetallic sheets by nite elements method has been compared. Sheets modeled with 5 different assumptions were compared with each other and experimental datas, to determine the FE model that gives the most realistic result. FE models were created with the assumption that the adhesion was excellent or separable, and with the case that the solidi ed adhesive in the intermediate layer was modeled and not modeled. As a result, the closest values to the experimental results were obtained with the model created with the assumption that there is a solidi ed adhesive layer in the middle layer and there is an adhesion interface between this layer and metallic layers. On the other hand, when the adhesive is not modeled in the intermediate layer, it has been observed that the CPU time is reduced by 2 times while the results are seen small changes.