焊接数值模拟技术发展现状

State-of-the-art of Numerical Simulation In Welding

焊接是一复杂的物理化学过程 ,借助计算机技术 ,对焊接现象进行数值模拟 ,是国内外焊接工作者的热门研究课题 ,并得到了越来越广泛的应用。概括介绍了数值模拟技术的概念及分析方法和焊接数值模拟的主要内容及意义 ,综述了国内外焊接数值模拟在热过程分析、冶金分析、应力应变分析、构件使用性能分析、氢扩散分析、特种焊接过程分析方面的研究现状及发展趋势 。

Welding is a sophisticated metallurgical process, numerical simulation of the welding phenomenon with the help of the computer has got more and wide application. The concept and analytical methods of numerical simulation and primary coverage and meaning of numerical simulation in welding are introduced; the present state and perspectives of welding numerical simulation in China and abroad in the analysis of thermal process, metallurgical, stress and strain, service performance of component, hydrogen diffusion, special welding process are reviewed. Suggestions for the development of the numerical simulation in welding in China are put forward.