FEM analysis of sheet metal drawing processes

FEM Analysis of sheet metal drawing process adopts one of 3 methods based on the membrane, shell and continuum element:

• Membrane elements:

• Computational efficiency and superior convergence in contact analysis (adv)

• Does not consider bending effect and it is inaccurate in bending dominant problems (disadv)

• Shell elements:

• Can capture the combination of stretching and bending and provides more degrees of freedom to capture accurate stress distribution (adv)

• Notable amount of computational time and computer space for its 3D calculations (disadv)

• Continuum elements:

• Can handle through-thickness compressive straining (adv)

• More elements are needed to describe the shell-type structures, so that a large system of equations must be solved (disadv)