BUCKLING ANALYSIS UNDER COMBINED LOADING OF THIN-WALLED PLATE ASSEMBLIES USING BUBBLE FUNCTIONS |
| |
Authors: | Gao Xuanneng Zou Yinsheng Zhou Xuhong |
| |
Affiliation: | (1) Department of Civil Engineering, Nanchang University, 330029 Nanchang, China;(2) Institute of Structural Engineering, Hunan University, 410082 Changsha, China |
| |
Abstract: | Bubble functions are finite element modes that are zero on the boundary of the element but nonzero at the other point. The present paper adds bubble functions to the ordinary Complex Finite Strip Method(CFSM) to calculate the elastic local buckling stress of plates and plate assemblies. The results indicate that the use of bubble functions greatly improves the convergence of the Finite Strip Method(FSM) in terms of strip subdivision, and leads to much smaller storage required for the structure stiffness and stability matrices. Numerical examples are given, including plates and plate structures subjected to a combination of longitudinal and transverse compression, bending and shear. This study illustrates the power of bubble functions in solving stability problems of plates and plate structures. The work was partly supported by the Natural Science Foundation of Jiangxi Province of China and by the Basic Theory Research Foundation of Nanchang University. |
| |
Keywords: | local buckling bubble functions finite strip method(FSM) complex finite strip method (CFSM) plates and plate assemblies longitudinal(transverse) compression bending and shear |
本文献已被 万方数据 SpringerLink 等数据库收录! |