摘要
用有限元法分析了开口薄壁圆弧曲梁的非线性弹性屈曲,并通过对有限元计算结果的非线性回归分析,给出了开口薄壁曲梁极限承载力的实用估算公式.
The stability of thin-walled structures is an important problem in civil engineering. In this paper, the nonlinear elastic buckling of the open thin-walled curved-beam is analyzed by using the finite element method. Through the nonlinear regression computation for a great number of Finite-Element results, a practical and simple formula is obtained, which can be used to estimate the ultimate bearing capacity of the open thin-walled curved beams.
出处
《力学与实践》
CSCD
北大核心
2007年第6期27-31,43,共6页
Mechanics in Engineering
关键词
开口薄壁构件
曲梁
非线性屈曲
极限承载力
open thin-walled member, curved beam, nonlinear buckling, ultimate bearing capacity
