• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Powder Metallurgy and Metal Ceramics >DIRECT MULTISCALE MODELING OF COLD PRESSING OF METAL POWDERS
【24h】

DIRECT MULTISCALE MODELING OF COLD PRESSING OF METAL POWDERS

机译：金属粉末冷压的直接多尺度建模

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new numerical approach is proposed to model powder pressing. It is called direct multiscale modeling. In direct multiscale modeling, each macroscopic finite element has a corresponding microstructure regarded as a powder representative cell. On the assumption that the strain rate of the macroscopic finite element and average strain rates of the representative cells are equal, the kinetics of macroscopic deformation and microscopic distortions of the representative cells is determined at every instant. The problem dealing with the effect of the initial spheroidization of intraagglomerate pores on the compaction of agglomerated powders is considered as an example. The new approach permits assessing the effect of the initial intraagglomerate pore shape on the closure kinetics of interagglomerate pores in pressing.
机译：提出了一种新的数值模拟粉末压制的方法。这称为直接多尺度建模。在直接多尺度建模中，每个宏观有限元都有一个相应的微观结构，被视为粉末代表单元。假设宏观有限元的应变速率和代表单元的平均应变速率相等，则在每个瞬间确定代表单元的宏观变形和微观变形的动力学。一个例子是处理团聚内孔的初始球化作用对团聚粉末压实的影响的问题。新方法允许评估初始团聚内孔形状对压制中团聚间孔的闭合动力学的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号