Rasha M. Abo-bakr

TL;DR: This article tends to investigate and optimize critical buckling loads of thin/thick sandwich functionally graded (FG) beam with porous core, for the first time, and examines influences of porosity function, porosity percentage, distribution gradation index, load types and boundary conditions on bucking loads.

TL;DR: In this paper, a new solution technique in solving highly nonlinear integro-differential equation governing electrically actuated nanobeams made of functionally graded material is presented. And the resulting algebraic model provides means for obtaining critical deflection, pull-in voltage, detachment length, minimum gap, and freestanding effects.

TL;DR: In this paper, the parabolic higher order shear theory of Reddy is proposed to consider the shear effect of both thick and thin beams, where the gradation of the material is distributed continuously through thickness direction with generalized power-law function.

TL;DR: In this article, the optimal design of hybrid composite beams with different boundary conditions was considered, where the optimization problem accounts for fiber type, fiber volume fractions, thickness, and fiber orientation angles of different layers as design variables.

TL;DR: In this article, the authors investigated buckling of functionally graded (FG) beam under variable axial load and optimized its wight to get the maximum buckling load, where the gradation of beam through the thickness direction is described by different function distributions (i.e., symmetric power and sigmoidal functions).