By a News Reporter-Staff News Editor at Journal of Engineering -- A new study on Mechanical Engineering is now available. According to news reporting originating from Sidi Bel Abbes, Algeria, by VerticalNews correspondents, research stated, "In this paper, the buckling behavior of generic higher-order shear beam models is investigated in a unified framework. This paper shows that most higher-order shear beam models developed in the literature (polynomial, sinusoidal, exponential shear strain distribution assumptions over the cross section) can be classified in a common gradient elasticity Timoshenko theory, whatever the shear strain distribution assumptions over the cross section."
Our news editors obtained a quote from the research from the University of Sidi Bel Abbes, "The governing equations of the bending/buckling problem are obtained from a variational approach, leading to a generic sixth-order differential equation. Buckling solutions are presented for usual archetypal boundary conditions such as pinned-pinned, clamped-free, clamped-hinge, and clamped-clamped boundary conditions. The results are then extended to general boundary conditions based on generalized linear elastic connection law including vertical and rotational stiffness boundary conditions. Engineering analytical solutions are derived in a dimensionless format. The model valid for macrostructures is generalized for micro-or nanostructures using the nonlocal integral Eringen's model. The nonlocal framework is also developed in a variational consistent framework."
According to the news editors, the research concluded: "Buckling solutions are finally presented for the nonlocal higher-order beam/colum models."
For more information on this research see: Buckling of Generic Higher-Order Shear Beam/Columns with Elastic Connections: Local and Nonlocal Formulation. Journal of Engineering Mechanics, 2013;139(8):1091-1109. Journal of Engineering Mechanics can be contacted at: Asce-Amer Soc Civil Engineers, 1801 Alexander Bell Dr, Reston, VA 20191-4400, USA.
The news editors report that additional information may be obtained by contacting N. Challamel, Univ Djillali Liabes Sidi Bel Abbes, Lab Mat & Hydrol, Sidi Bel Abbes 22000, Algeria. Additional authors for this research include I. Mechab, N. Elmeiche, M.S.A. Houari, M. Ameur and H.A. Atmane.
Keywords for this news article include: Africa, Algeria, Sidi Bel Abbes, Mechanical Engineering
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