A new finite element of spatial thin-walled beams

被引：0
|
作者：
王晓峰 [1 ]
张其林 [1 ]
杨庆山 [2 ]
机构：
[1] College of Civil Engineering,Tongji University
[2] School of Civil Engineering,Beijing Jiaotong University
来源：
AppliedMathematicsandMechanics(EnglishEdition) | 2010年 / 31卷 / 09期
基金：
中国国家自然科学基金;
关键词：
spatial beams; thin-walled section; stiffness matrix; shear deformation; coupling of flexure and torsion; second shear stress;
D O I：
暂无
中图分类号：
TU33 [薄壳结构];
学科分类号：
摘要：
Based on the theories of Timoshenko’s beams and Vlasov’s thin-walled members, a new spatial thin-walled beam element with an interior node is developed.By independently interpolating bending angles and warp,factors such as transverse shear deformation,torsional shear deformation and their coupling,coupling of flexure and torsion, and second shear stress axe considered.According to the generalized variational theory of Hellinger-Reissner,the element stiffness matrix is derived.Examples show that the developed model is accurate and can be applied in the finite element analysis of thin-walled structures.
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页码：1141 / 1152
页数：12
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