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On sixfold coupled buckling of thin-walled composite beams

✍ 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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✦ 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.


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