Effect of various parameters on Wrinkling with imperfections in Deep Drawing of Cylindrical Cup

Due to limitations of finite element methods and software packages, existing in incorporating the imperfections in to the model. The parametric study of BHF, sheet thickness, die profile radius, punch profile radius, initial yield stress and sheet anisotropy and including imperfections is carried out by the model developed by Ravindra.K.Saxena [1, 2, 3]. The mathematical model is studied and validated here under. The basic FE code is first validated for the simulation of circular cup drawing to check the suitability of the code for the study of deep drawing defects. The predicted punch load variation and thickness strain distribution are found to be consistent with the experimental results available in the literature on circular cup drawing. Later, the FE code is suitably modified and used for the prediction of the defect, wrinkling in circular cup drawing.