计算力学学报2012，Vol.29Issue(1)：140-145,6.
搅拌摩擦焊接数值模拟的网格敏感性分析
Mesh sensitivity analysis in the simulation of friction stir welding
摘要
Abstract
Fully coupled thermo-mechanical models with different sizes are developed to study the effect of the mesh sensitivity on the computational results. The temperature distribution and the residual stress distribution are also studied. The result indicates that computational error, efficiency and cost are all depending on the mesh density. Accuracy is enhanced with the increase of mesh density. However, accuracy is not proportional to the increase of the mesh density. Temperature distribution is almost steady in the welding process. Additionally,the longitudinal distribution of residual stress in the welding plate reveals the double peak feature,which can correlate well with the previous experiments.关键词
搅拌摩擦焊接/完全热力耦合模型/网格敏感性/残余应力/温度分布Key words
friction stir welding/fully coupled thermo-mechanical model/mesh sensitivity/residualstress/temperature distribution分类
矿业与冶金引用本文复制引用
刘亚丽,张昭,陈金涛,张洪武..搅拌摩擦焊接数值模拟的网格敏感性分析[J].计算力学学报,2012,29(1):140-145,6.基金项目
国家自然科学基金 （）
国家973计划（2010CB832704）资助项目. （）
