NUMERICAL SIMULATION OF METAL FORMING PROCESSES BY CORRECTED SMOOTH PARTICLE HYDRODYNAMICS MESHLESS METHODS

Abstract

Abstract: Based on the flow formulation of slightly compressible rigid plastic materials a code of bar and rod plane-strain upsetting in metal forming is developed, in which corrected smooth particle hydrodynamics (CSPH) meshless method is employed. A simple method to smoothing technique of calculating volume strain rate is proposed to improve the calculating of stress field. The results of velocity field and stress field by CSPH, finite element method and experiment of pure commercial aluminum and Al6060 materials upsetting are analyzed. It is shown that the large deformation in metal forming processes can be solved by CSPH. The method of the CSPH will be a good measure to solve the complicated metal forming further.

Key words: Finite element method, Meshless method, Metal forming, Numerical simulation

CLC Number:

TG301

LI Changsheng;LIU Xianghua;XIONG Shangwu ;MARTINS Paulo António Firme. NUMERICAL SIMULATION OF METAL FORMING PROCESSES BY CORRECTED SMOOTH PARTICLE HYDRODYNAMICS MESHLESS METHODS[J]. , 2006, 42(7): 144-152.

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NUMERICAL SIMULATION OF METAL FORMING PROCESSES BY CORRECTED SMOOTH PARTICLE HYDRODYNAMICS MESHLESS METHODS

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