On the Effect of Through-Thickness Integration for the Blank Thickness and Ear Formation in Cup Drawing FE Analysis

Various numerical parameters such as element size, mesh topology, formulations effect the prediction accuracy of sheet metal forming simulations and wrong selection these can lead to inaccurate predictions. Therefore, proper is crucial for obtaining realistic results from finite (FE) analyses. In present work, influence number through-thickness integration points was investigated on cup drawing simulation. Highly anisotropic AA 2090-T3 aluminum alloy selected test material behavior defined with Barlat 91 yield criterion. Firstly, model created implicit code Marc then FE analyses were performed five, seven nine layers investigate points. The computed earing profiles thickness strain distributions compared measurements. Comparisons showed that it effects maximum height distribution along rolling direction.