| 焊接非线性大梯度应力变形的高效计算技术 |
| |
| 引用本文： | 张建勋,刘川,张林杰.焊接非线性大梯度应力变形的高效计算技术[J].焊接学报,2009,30(6):107-112. |
| |
| 作者姓名： | 张建勋 刘川 张林杰 |
| |
| 作者单位： | 西安交通大学,金属材料强度国家重点实验室,西安,710049 |
| |
| 基金项目： | 国家自然科学基金项目(50475200);;国家教育部博士点基金(20070698088) |
| |
| 摘 要： | 焊接应力变形具有高度非线性大梯度特征,其数值计算涉及到材料、几何与组织的非线性问题.基于热弹塑性有限元的焊接应力变形计算能全面反映焊接的温度场、应力变形场及其变化规律,对深入理解焊接过程起着越来越重要的作用.然而焊接热弹塑性有限元的复杂计算过程和高耗时性使得如何进行高效的焊接计算成为备受关注的学科前沿,正在逐步形成具有严格科学性的焊接应力变形高效计算技术.研究了这一领域的研究成果与进展,对焊接应力变形高效计算技术进行了分类,并探讨了其发展趋势.
|
| 关 键 词： | 焊接应力变形 焊接数值模拟 高效计算技术 |
| 收稿时间： | 2008/3/5 0:00:00 |
Efficient calculation technologies for welding stress and deformation with nonlinear and gradient character |
| |
| ZHANG Jianxun,LIU Chuan and ZHANG Linjie.Efficient calculation technologies for welding stress and deformation with nonlinear and gradient character[J].Transactions of The China Welding Institution,2009,30(6):107-112. |
| |
| Authors: | ZHANG Jianxun LIU Chuan and ZHANG Linjie |
| |
| Affiliation: | The Key State Laboratory for Mechanical Behavior of Materials;Xi'an Jiaotong University;Xi'an 710049;China |
| |
| Abstract: | The stress and deformation of welding have strong nonlinear and gradient characteristics,which calculation involves the nonlinear properties of materials,geometry and microstructures in the welded joint.It is extraordinarily important for understanding the mechanism of welding stress and deformation to investigate the welding thermal process and stress-strain development based on thermal elastic-plastic finite element method(FEM).However,the complicated process and high time-consuming for calculating the we... |
| |
| Keywords: | welding stress-strain welding digital simulation high efficient calculation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《焊接学报》浏览原始摘要信息 |
|
点击此处可从《焊接学报》下载全文 |
