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Finite element analysis of composite porous billet extrusion processing

机译:复合多孔方坯挤压加工的有限元分析

摘要

[[abstract]]Clad composite materials are composed of two or more materials joined at their interfacial surfaces. A major advantage of clad composites is that the combination of different materials can result in a new material with enhanced mechanical properties and improved electrical characteristics. This study employs commercial rigid-plastic finite element (FE) DEFORMTM 2D software to investigate the plastic deformation behavior of CuZn37-A6061 composite porous billets during their axisymmetric extrusion through conical dies. The FE analyses assume the container and die to be rigid bodies and ignore the deformation-induced temperature rise which occurs during practical extrusion processes. The numerical analyses investigate the respective influences of the initial density of the inner porous billet, the semi-angle of the conical die and the friction factors on the magnitude of the Y-load at the die exit and the distributions of the density, effective strain and effective stress, respectively, within the extruded billet. The analytical results confirm the suitability of the current finite element software for modeling the two-dimensional extrusion of composite porous billets.
机译:[[摘要]]复合材料是由两种或更多种在其界面处结合的材料组成。包覆复合材料的主要优点是不同材料的组合可以产生具有增强的机械性能和改善的电特性的新材料。这项研究使用商业硬塑性有限元(FE)DEFORMTM 2D软件研究了CuZn37-A6061复合多孔坯料在通过圆锥形模具进行轴对称挤压过程中的塑性变形行为。有限元分析假设容器和模具为刚性体,而忽略了在实际挤压过程中因变形而引起的温度升高。数值分析研究了内部多孔坯料的初始密度,圆锥形模具的半角度和摩擦系数对模具出口处Y载荷大小以及密度,有效应变分布的各自影响。挤压坯料内的有效应力和有效应力。分析结果证实了当前的有限元软件适用于对复合多孔坯料的二维挤压建模。

著录项

  • 作者

    Chen Dyi-Cheng;

  • 作者单位
  • 年度 2012
  • 总页数
  • 原文格式 PDF
  • 正文语种 en
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