A rigid-plastic point collocation method is applied to the analysis of plane strain forging,
which is a nonlinear rigid-plastic problem of bulk metal forming. In general, the bulk metal …

Hot forward-backward extrusion is in practical use in wide fields of industry, such as hot die
forging. However, there are many problems remaining to be solved in the theoretical and …

The accuracy of numerical solutions and the constitutive modelling are discussed in relation
to the analysis of inelastic problems involving material nonlinearities. Regarding the …

The volumetrically elastic and deviatorically rigid‐plastic finite element method (FEM) is a
different method from the conventional penalty rigid‐plastic FEM, and has some merits in …

The authors have developed a new machine for tube bulging which initially puts a deflated
rubber membrane into a work tube and drives the internal pressure through a membrane …

The volumetrically elastic and deviatorically rigid-plastic finite-element method is a method
placed between the rigid-plastic finite-element method and the elastic-plastic finite-element …

In numerical analyses of metal forming problems, if deformation of analyzed workpiece is
appreciable, remeshing is needed in the case of using mesh methods such as FEM. The …

A rigid‐plastic hybrid element method (HEM) for simulation of metal forming is developed.
This method is a mixed approach of the rigid‐plastic domain‐BEM and the rigid‐plastic FEM …

This report describes a process of building up a CAI system for the finite element method and
details of the system itself. The system has been practically used for 4 years in a laboratory …

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