Results 221 to 230 of about 2,017 (268)

End effects in thin-walled beams

37th Structure, Structural Dynamics and Materials Conference, 1996
The nature of end effects for prismatic beams with thin-walled, open cross sections is analyzed by the variational-asymptotic method. This way, the decay rates for disturbances at the ends of prismatic beams are correctly evaluated. Thus, the foundations of Vlasov's theory, as well as restrictions on its applicability, are obtained from the variational-
Vitali Volovoi, Dewey Hodges, Victor Berdichevsky, Vladislav Sutyrin   +3 more
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Theory of Anisotropic Thin-Walled Beams

Journal of Applied Mechanics, 2000
Asymptotically correct, linear theory is presented for thin-walled prismatic beams made of generally anisotropic materials. Consistent use of small parameters that are intrinsic to the problem permits a natural description of all thin-walled beams within a common framework, regardless of whether cross-sectional geometry is open, closed, or strip-like ...
V. V. Volovoi, D. H. Hodges
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Restrained Torsion of Thin-Walled Beams

Journal of Structural Engineering, 2014
AbstractA first-order torsion formulation for closed thin-walled (CTW) beam subjected to restrained torsion is developed to consider the warping deformation and restrained shear stresses on cross section and their effect on the behavior of thin-walled (TW) beam.
Zhao-Qiang Wang, Jin-Cheng Zhao
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An SBFEM Element for Thin-Walled Beams

International Journal of Aerospace and Lightweight Structures (IJALS), 2013
The scaled boundary finite element method (SBFEM) is a semi-analytical method in which only the boundary is discretized. The results on the boundary are scaled into the domain with respect to a scaling center which must be “visible” from the whole boundary. For beam-like problems the scaling center can be selected at infinity and only the cross-section
Jonathan Daniel Junga, Wilfried Beckerb
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Adaptive Thin-Walled Beams

2009
Chapter 7 develops a novel beam theory accounting for more than membrane-only wall properties of arbitrary cross-sections without additional degrees of freedom, as well as for shear flexibility and torsional warping effects.
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Equivalent beam analysis of thin-walled beam structures

Computers & Structures, 1987
Abstract In the analysis of thin-walled beam structures it is often necessary to consider the effects of warping restraint in addition to the more usual actions of pure torsion, bending moment and axial force. Out-of-plane warping occurs as a result of twisting about the horizontal axis and, if restrained, may result in the development of large ...
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Secondary Warping of Thin‐Walled Beams

Journal of Engineering Mechanics, 1983
Secondary warping, as introduced by Wagner, overestimates the stiffness of thin-walled beams in buckling. This is particularly pronounced in beams with cross-sectional shapes consisting of thin rectangular elements which intersect at a common point. For illustration a beam of a cruciform cross-section is analyzed.
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An Approach to the Optimization of a Thin-walled Z-beam

2009
One approach to the optimization of a thin-walled open section Z-beam subjected to bending and to the constrained torsion is considered. For given loads, material and geometrical characteristics the problem is reduced to the determination of minimum mass i.e. minimum cross-sectional area of a structural thin-walled beam of a chosen shape.
Anđelić, Nina, Maneski, Taško, Milošević Mitić, Vesna   +2 more
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Distortional analysis of thin walled beams

2013
A general solution for the stress-deformation analysis of interconnected plates subjected to general loading conditions is developed. The solution is based on the assumptions of thin-walled plate theory and is limited to combinations of straight plates made of linearly elastic isotropic material.
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Distortional theory of thin-walled beams

Thin-Walled Structures, 1999
Abstract The classic thin-walled beam theory for open and closed cross-sections is generalized to include one distortional mode of deformation. Distortional cross-section parameters are introduced and the new orthogonality conditions for uncoupling of the axial displacement modes are given.
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