Thermo-Mechanical Modeling of Friction Stir Spot Welding (FSSW) Process: Use of an Explicit Adaptive Meshing Scheme
Thermo-Mechanical Modeling of Friction Stir Spot Welding (FSSW) Process: Use of an Explicit Adaptive Meshing Scheme
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搅拌摩擦点焊 (FSSW) 过程的热机械建模：使用显式自适应网格划分方案
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发表时间：
2005
期刊：
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通讯作者：
S. David
中科院分区：
文献类型：
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作者：
M. Awang;V. Mucino;Zhili Feng;S. David
采用显式有限元程序对搅拌摩擦点焊过程进行了有限元模拟。采用自适应网格划分和对流技术，在大变形条件下保持网格质量不变，模拟了搅拌摩擦焊接过程中的材料流动和温度分布。预测的焊接接头的整体变形形状类似于实验观察到的。给出了径向温度和应力分布图以及温度-变形分布图。然而，细化的几个建模方面需要更现实的预测FSSW过程。
This paper presents on-going finite element modeling efforts of friction stir spot welding (FSSW) process by an explicit finite element code. Adaptive meshing and advection schemes, which makes it possible to maintain mesh quality under large deformations, is utilized to simulate the material flow and temperature distribution in FSSW process. The predicted overall deformation shape of the weld joint resembles that experimentally observed. Temperature and stress graphs in the radial direction as well as temperature-deformation distribution plots are presented. However, refinements of several modeling aspects are needed for more realistic prediction of the FSSW process.