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Dynamic investigation of porous functionally graded beam using a sinusoidal shear deformation theory
Fouad Bourada,Abdelmoumen Anis Bousahla,Mohamed Bourada,Abdelghani Azzaz,Amina Zinata,Abdelouahed Tounsi 한국풍공학회 2019 Wind and Structures, An International Journal (WAS Vol.28 No.1
This article present the free vibration analysis of simply supported perfect and imperfect (porous) FG beams using a high order trigonometric deformation theory. It is assumed that the material properties of the porous beam vary across the thickness. Unlike other theories, the number of unknown is only three. This theory has a parabolic shear deformation distribution across the thickness. So it is useless to use the shear correction factors. The Hamilton’s principle will be used herein to determine the equations of motion. Since, the beams are simply supported the Navier’s procedure will be retained. To show the precision of this model, several comparisons have been made between the present results and those of existing theories in the literature.