SHEAR STRAIN EFFECTS IN FLEXURE AND TORSION OF THIN-WALLED-BEAMS WITH OPEN OR CLOSED CROSS-SECTION

被引：39
作者：
LAUDIERO, F
SAVOIA, M
机构：
[1] Istituto di Scienza delle Costruzioni, Facoltà di Ingegneria, Università di Bologna, 40136 Bologna, Viale Risorgimento
来源：
THIN-WALLED STRUCTURES | 1990年 / 10卷 / 02期
关键词：
D O I：
10.1016/0263-8231(90)90058-7
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this study a unified approach is presented for the analysis of the shear strain effects in thin-walled beams subjected to both non-uniform bending and torsion. Middle surface shear strains are taken into account for open as well as closed cross-sections. A suitable axial displacement field is introduced by making the basic choice that the solution to the St. Venant problems is to be reproduced for v = 0. By making use of a variational formulation, a system of differential equations is derived which rules the behaviour of a thin-walled beam with any cross-section. Hence the influence of the shear strains on the stress state as well as on the global deformation of the beam is shown through some significant examples. © 1990.
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页码：87 / 119
页数：33
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