Elasto-Plastic Response of Timoshenko Beams

by Robert K. Wen,
Nurel Beylerian,

Serial Information: Journal of the Structural Division, 1967, Vol. 93, Issue 3, Pg. 131-146

Document Type: Journal Paper


A method for computing the elasto-plastic dynamic response of Timoshenko beams (i.e., effects of shear deformation and rotatory inertia included) is presented. The method uses a lumped parameter model. The effects of the interactions between bending moment and shear force on the yielding behavior are taken into account by a generalization of the plastic potential theory. Numerical remits obtained involved the following variables: the form of the interaction (yield) curve, support conditions, span length, and the web-thickness of the cross section. It is shown that the influence of shear deformation could be substantial even for beams of quite usual proportions.

Subject Headings: Shear deformation | Shear forces | Elastoplasticity | Beams | Dynamic response | Rotation | Inertia | Parameters (statistics)

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