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The multi-scale physical and numerical modeling of fracture phenomena in the MgCa0.8 alloy

机译:MgCa0.8合金断裂现象的多尺度物理和数值模拟

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摘要

The MgCa0.8 alloy can be used to produce surgical threads. However, the low plasticity of this alloy causes problems during wire drawing. A numerical model of the drawing process can be used to optimize the deformation parameters. Research has shown that fractures in MgCa0.8 start within grain boundaries; therefore, a model of the drawing process should consider this mechanism. The main purpose of this work is to develop a micro-scale numerical model of fracture in MgCa0.8 using the boundary element method (BEM). Additionally, the potential for using the developed BEM model as a part of the multi-scale model of the drawing process is investigated.
机译:MgCa0.8合金可用于生产手术线。然而,这种合金的低塑性在拉丝过程中引起问题。拉伸过程的数值模型可用于优化变形参数。研究表明,MgCa0.8的断裂始于晶界;因此,绘制过程的模型应考虑此机制。这项工作的主要目的是使用边界元法(BEM)建立MgCa0.8断裂的微观数值模型。此外,研究了将开发的BEM模型用作绘制过程的多比例模型的一部分的潜力。

著录项

  • 来源
    《Computers & Structures》 |2011年第12期|p.1038-1049|共12页
  • 作者单位

    Faculty of Metal Engineering and Industrial Computer Science, ACH University of Science and Technology, Al. Mickiewicza 30, 30-059, Krakow, Poland;

    Faculty of Metal Engineering and Industrial Computer Science, ACH University of Science and Technology, Al. Mickiewicza 30, 30-059, Krakow, Poland;

    Institute of Materials Science, Leibniz Universitat Hannover, An der Universitat 2, 30823 Garbsen, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    mgca0.8 alloy; boundary element method (bem); fracture model; drawing process;

    机译:mgca0.8合金;边界元法(bem);断裂模型;拉拔工艺;

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