Linear stability analysis of shear flexible thin-walled beams

被引：0

作者：

Lanc, D ^{[1
]}

Turkalj, G ^{[1
]}

Brnic, J ^{[1
]}

机构：

[1] Univ Rijeka, Fac Engn, Rijeka, Croatia

来源：

PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE OF DAAAM NATIONAL ESTONIA | 2004年

关键词：

large displacements; large rotations; shear deformations; thin-walled beam;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents finite element based numerical stability analysis of thin-walled beam structures. Using the linearized virtual work principle with assumption of large displacements, large rotation but small strains the finite element equation is derived. Effects of cross sectional shear deformations are also taken into account. To include large rotation effects the non-linear displacement field of cross-section is used. A new two-node shear flexible finite element with seven degrees of freedom per node is developed. Complete exact 14x14 elastic and geometric stiffness matrices are evaluated. A very own computer program THINWALL SHEAR is developed. Obtained solutions are for verification compared with analytical and numerical results of the other authors available from literature.

引用

页码：59 / 62

页数：4

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