Since, especially for higher frequencies, Timoshenko's theory gives more reliable results than EulerβBernoulli's theory, systems of beams, like frames, under arbitrary dynamic excitations should be analyzed on the basis of this refined theory. In this paper, after deriving the basic fundamental solu
Fundamental solution and integral equations for Timoshenko beams
β Scribed by H. Antes
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 221 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0045-7949
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β¦ Synopsis
It is well known that TimoshenkoΓs theory is a refined beam theory which takes shear deformation and rotatory inertia into account. Here, for the first time, an integral equation description for all relevant states, the deflection, the rotation, the bending moment, and the shear forces is derived. Adding the well known integral equations for axial displacements and forces in bars under tension, arbitrary plane frame structures can be modelled by adequate combinations of these equations. Examples show the exactness of the results and demonstrate the applicability of this boundary integral formulation which can be considered as a first step to dynamic analyses of Timoshenko beam systems.
π SIMILAR VOLUMES
Wave reflection in a Timoshenko beam is treated, using wave splitting and the imbedding technique. The beam is assumed to be inhomogeneous and restrained by a viscoelastic suspension. The viscoelasticity is characterized by constitutive relations that involve the past history of deflection and rotat
This paper presents a uni\_ed formulation of the various singular integral equations used in the boundary element methods "BEM# for the solution of linear\ quasi!static\ anisotropic poroelasticity[ In particular\ a derivation is provided that connects the {{direct method|| with the {{indirect method