Experimental and numerical study of wrinking during deep drawing of conical cups

摘要

Wider application of FEM in the simulation of industrial stamping processes requires the quality of numerical results to be confirmed experimentally. In particular, wrinkling simulation lacks a benchmark test against which various FEM packages could be verified. In this work, a deep drawing process was used to investigate the initiation and evolution of wrinkles in conical cups. The shape and distribution of wrinkles was determined using a dedicated measurement rig. The two FEM packages testd were ITAS3D and ABAQUS/Explicit. The numerical results of wrinkling obtained by both codes agreed well with each other and also reasonably well with experimental findings.