摘要
根据变截面薄壁杆件约束扭转的特点,提出用一维随机有限元法来计算其扭转强度的可靠度.它能够计算翘曲约束引起的二次剪应力流,具有计算工作量小、精度高的优点.
According to the characteristic of the restrained torsion of the thinwalled beam with varied crosssections, a stochastic finite element method for its torsional strength reliability computation is developed in this paper.This method takes into account the effect of secondary shear flow resulting from warping restraint.It has the advantages of little computation and high accuracy.
出处
《长沙铁道学院学报》
CSCD
北大核心
2003年第1期24-27,共4页
Journal of Changsha Railway University
关键词
薄壁杆件
约束扭转
随机有限元
可靠度
thin-walled beam
restrained torsion
stochastic finite element
reliability