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摘要：
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探讨提高塑性成形数值仿真精度的途径,理论上介绍了塑性成形数值仿真中材料的非线性、摩擦边界条件和动态接触边界的处理等问题。给出常用于有限元分析的金属材料模型;对比划分网格不良和优良条件下的材料变形和温度模拟的差异、不同接触条件下金属变形的差异,并讨论网格重划分过程中金属体积的损失,利用实例证明塑性成形数值仿真在工业中的成功应用。
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Approach for increasing precision of numerical simulation of plastic forming was discussed.The nonlinear of material,inter-object of part and dynamic contact were introduced.General material model was presented.The different deformation and temperature result was displayed with faulty and mesh.The deformation was illustrated with different inter-object conditions.The loss of volume because of remeshing was discussed.And the successful application of simulation technology in plastic forming industry was illustrated.
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基金项目：
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重庆市科技攻关项目(CSTC,2005AA3012-1);;
国家自然科学基金项目(50775229)
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作者简介：
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参考文献：
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