Elasto-plastic finite element method based on incremental deformation theory and continuum based shell elements for planar anisotropic sheet materials

A fully coupled elasto-visco-plastic damage theory for anisotropic materials

Comparative investigation into implicit, explicit, and iterative implicit/explicit schemes for the simulation of sheet-metal forming processes

Unified and mixed formulation of the 8-node hexahedral elements by assumed strain method

Step-wise combined implicit–explicit finite-element simulation of autobody stamping processes

Rigid-plastic finite element analysis of sheet metal forming processes with initial guess generation

An elastic-plastic finite element analysis on hydrostatic bulging of rectangular diaphragms by using layered degenerated shell elements

The effect of bending is investigated through the comparison of the membrane analysis and the shell analysis for stretching and deep drawing. An incremental formulation incorporating the effect of shape change and anisotropy is used for the analysis of elastic‐plastic non‐steady large deformation. The deformation during a step is considered using the natural convected coordinate system. Stretching of a square blank with a hemispherical punch and deep drawing of a cyclindrical cup is analysed and the corresponding experiments are carried out. The computational results are compared with the experiments. In stretching, the comparison has shown that both the membrane analysis and the shell analysis are in good agreement with the experiment for punch load and strain distribution. In deep drawing, the computed loads of both the membrane analysis and the shell analysis are generally in good agreement with the experiment. The computed thickness strain of the membrane analysis, however, shows a wide difference with the experiment. In the shell analysis, the thickness strain shows good agreement with the experiment. It has been shown that the membrane approach shows a limitation for the deep drawing process in which the effect of bending is not negligible and more exact informations on the thickness strain distribution are required.

Comparative investigation of sheet metal forming processes by the elastic-plastic finite element method with emphasis on the effect of bending

Rigid—plastic finite-element analysis of sheet-metal forming processes using a selective membrane/shell formulation

Determination of Frictional Coefficient of Sheet Metal Working and its Application to Stretch Forming

H. B. Shim

Papers

Rigid-plastic finite element analysis of sheet metal forming processes with initial guess generation

An elastic-plastic finite element analysis on hydrostatic bulging of rectangular diaphragms by using layered degenerated shell elements

Comparative investigation of sheet metal forming processes by the elastic-plastic finite element method with emphasis on the effect of bending

Rigid—plastic finite-element analysis of sheet-metal forming processes using a selective membrane/shell formulation

Determination of Frictional Coefficient of Sheet Metal Working and its Application to Stretch Forming