An incremental complete solution of the stretch-forming and deep-drawing of a circular blank using a hemispherical punch

Abstract An incremental variational method is employed to analyse axisymmetric elastic plastic solids at large strains. The method is then applied to the problems of stretch-forming and complete deep-drawing of a circular blank using a hemispherical punch. The contact problem at different zones is formulated and hence it was possible to utilize and use the finite element method which has been proved capable of tackling complicated metal forming problems.