Bending Analysis of Micropolar Beams
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Date
2020-07
Journal Title
Journal ISSN
Volume Title
Publisher
LACCEI Inc.
Abstract
The purpose of this research is to study the bending behavior of micropolar beams by using an improved first-order shear deformation theory. The proposed formulation employs five independent variables for the displacement field and a single parameter for microrotations. The model considers thickness stretching and 3D constitutive parameters. A finite element formulation is developed with spectral interpolation functions to avoid shear and Poisson locking. Convergence analysis of vertical deflections is presented to illustrate the performance of high-order elements. Numerical results obtained for cantilever and simply supported beams demonstrate the validity of the present approach.
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Keywords
Micropolar elasticity, Micropolar beams, Nonclassical continuum, Finite element methods