孔形圧延における三次元塑性変形の有限要素シミュレーション : 第1報, 定常変形の完全三次元シミュレーション

概要

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Three-dimensional steady-state deformation in shape rolling with grooved rolls is simulated by the rigid-plastic finite element method using the isoparametric hexahedral elements with eight nodes. To simulate complex steady-state deformation in shape rolling, a method featuring both the steady-state and the nonsteady-state schemes is proposed. For the three-dimensional element mesh, the boundary conditions of metal flow along the curved roll surface and of friction between the roll and the workpiece are dealt with at each node over the interface. Contact of the nodal points with the roll surface and detachment from the surface are judged at each step of calculation. As examples of three-dimensional simulation, rolling processes of bars and beams with grooved rolls are chosen. The deforming shape and the distributions of stress and strain in the workpiece are computed.
一般社団法人日本機械学会の論文
1990-05-25