The design of interior cutouts in laminated composite panels is of great importance in aerospace, automobile and structural engineering. Based on the Tsai–Hill failure criterion of the first ply, this paper presents a newly developed Fixed (FG) Grid Evolutionary Structural Optimization (ESO) method to explore shape optimization of multiple cutouts in composite structures. Different design cases...

This paper details the development of the fixed grid FEA (FGFEA) method to the solution of eigenvalue (natural frequency and buckling) problems, using a 4 node 20 degree of freedom shell element. The formulation of the FG element stiffness, buckling and natural frequency equations is presented. The first natural frequency and buckling load are determined for the simply supported plate with a ce...

Abstract While the application of Smoothed Particle Hydrodynamics (SPH) method for modeling welding processes has become increasingly popular in recent years, little is yet known about quantitative predictive capability this method. We propose a novel SPH model simulation tungsten inert gas (TIG) spot process and conduct thorough comparison between our implementation two finite element (FEM)-ba...

*Correspondence: [email protected] Department of Mathematics, Azarbaijan Shahid Madani University, Tabriz, Iran Full list of author information is available at the end of the article Abstract By making a special product Banach space and using the famous result of Covitz and Nadler on fixed point of multifunctions we investigate the existence of a solution for a system of fractional finite ...