In this paper, a theoretical model is developed for the dynamic analysis of composite thin-walled beams with open or closed cross-sections. The present model incorporates, in a full form, the shear flexibility (bending and warping shear) as well as a state of initial stresses. This allows to study t
On sixfold coupled buckling of thin-walled composite beams
β Scribed by Thuc Phuong Vo; Jaehong Lee
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 848 KB
- Volume
- 90
- Category
- Article
- ISSN
- 0263-8223
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β¦ Synopsis
A general analytical model based on shear-deformable beam theory has been developed to study the flexural-torsional coupled buckling of thin-walled composite beams with arbitrary lay-ups under axial load. This model accounts for all the structural coupling coming from the material anisotropy. The seven governing differential equations for coupled flexural-torsional-shearing buckling are derived. The resulting coupling is referred to as sixfold coupled buckling. Numerical results are obtained for thin-walled composite beams to investigate effects of shear deformation, fiber orientation and modulus ratio on the critical buckling loads and corresponding mode shapes.
π SIMILAR VOLUMES
Lateral buckling of thin-walled composite beams with monosymmetric sections is studied. A general geometrically nonlinear model for thinwalled laminated composites with arbitrary open cross-section and general laminate stacking sequences is given by using systematic variational formulation based on
The objective of the present paper is to analyze the motion of the Timoshenko thin-walled beam, with arbitrary open cross section, by means of an exact solution, and to study the influence of shear deformation over the natural frequencies. The effects of rotary inertia and warping stiffness are incl