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| Mesh sensitivity analysis in the simulation of friction stir welding |
| Received:August 20, 2010 Revised:February 28, 2011 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20121025 |
| KeyWord:friction stir welding fully coupled thermo-mechanical model mesh sensitivity residual stress temperature distribution |
| Author | Institution |
| 刘亚丽 |
大连理工大学 运载工程与力学学部 工程力学系 工业装备结构分析国家重点实验室, 大连 |
| 张昭 |
大连理工大学 运载工程与力学学部 工程力学系 工业装备结构分析国家重点实验室, 大连 |
| 陈金涛 |
大连理工大学 运载工程与力学学部 工程力学系 工业装备结构分析国家重点实验室, 大连 |
| 张洪武 |
大连理工大学 运载工程与力学学部 工程力学系 工业装备结构分析国家重点实验室, 大连 |
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| 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. |
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