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Abstract: A new mathematical analysis model and a uniform
constitutive equation are introduced after revising Misses yield rules
based on the rigid-plastic FEM. The deformation process of the head of
cup-rod type parts is simulated using rigid-plastic FEM and the lead
parts simulation test is carried out under the ordinary temperature
condition taking universal spline shaft as an example. The process of
upsetting process, compound extrusion and reverse extrusion are analyzed
in details. the distributing results of speed field, stress field and
strain field within the deforming bodies are calculated and curves of
moving distance and the change of deforming force are given. The
connection algorithm method of area weighted average method and volume
weighted average method are presented, which ensure the information
correctly transferred from the old mesh system to the new one, after
mesh-rezoning. The calculating data is proved to be consistent with
experiment results.
Key words: Cup-rod typed part Numerical simulation Accurate
deforming Rigid-plastic FEM
CLC No: TG376.4
西安科技成果转化工程计划基金资助项目(HZ200109). Received 20020409, received in revised
form 2001217
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