A geometrical and physical nonlinear finite element model for spatial thin-walled beams with arbitrary section |
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| Authors: | YANG QingShan &WANG XiaoFeng School of Civil Engineering Beijing Jiaotong University Beijing China College of Civil Engineering Tongji University Shanghai |
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| Affiliation: | YANG QingShan 1 &WANG XiaoFeng 2 1 School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China,2 College of Civil Engineering,Tongji University,Shanghai 200092 |
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| Abstract: | Based on the theories of Bernoulli-Euler beams and Vlasov's thin-walled members,a new geometrical and physical nonlinear beam element model is developed by applying an interior node in the element and independent interpolations on bending angles and warp,in which factors such as traverse shear deformation,torsional shear deformation and their coupling,coupling of flexure and torsion,and second shear stress are all considered.Thereafter,geometrical nonlinear strain in total Lagarange(TL) and the correspondin... |
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| Keywords: | Spatial beams thin-walled structures geometrical and physical nonlinearity finite element arbitrary section |
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