摘要
综述了高温下焊接结构强度及寿命评价研究的最新进展，着重介绍了以结构蠕变破断方程为基础确定焊缝强度减弱系数的方法，探讨了如何计及多轴应力因素的影响和由于焊缝的引入结构寿命的减少等问题．
Recent advances in the evaluation of strength and service life of welded structures at high temperature were summarized.A concept of structural creep-rupture equation was proposed to define the weldment creep strength reduction factor.Multiaxial effect was taken into account.Life reduction due to the presence of a weld in high temperature structures was studied.
出处
《南京化工大学学报》
1996年第2期88-93,共6页
Journal of Nanjing University of Chemical Technology(Natural Science Edition)
基金
国家教委优秀青年教师基金
关键词
焊缝
蠕变
强度
焊接
高温
weldment creep weldment strength reduction factor life assessment
