摘要
薄壁杆件的截面变形是经典薄壁杆件理论无法描述的.建立完备的截面可变形薄壁梁理论是将整体、畸变和局部等稳定问题统一起来的必要条件.广义梁理论是可以描述截面变形的薄壁杆件理论,但不完备.借助计算力学的思想可以使广义梁理论完备化.
Classical thin-walled beam theory can not handle sectional deformation. For unifying the analysis of global distortional and local buckling, it is necessary to establish a complete thin-walled beam theory which takes account of sectional deformations. Generalized beam theory （GBT）, which can deal with sectional deformations, is not a complete theory. The completion of GBT can be obtained by means of computational mechanics.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2008年第2期176-183,共8页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
国家自然科学资金资助项目(50378078)
关键词
薄壁杆件
梁理论
广义梁理论
截面变形
计算力学
完备分析
thin-walled beam
beam theory generalized beam theory
section deformation
computational mechanics
completion
