Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
CORRECTIONS ON THE RECOVERED VALUES FOR GFEM RESULTS ON DYNAMIC LAMINATED PLATE BENDING
Submission Author:
Diego Guimarães , RS
Co-Authors:
Diego Guimarães, Paulo de Tarso Mendonça
Presenter: Diego Guimarães
doi://10.26678/ABCM.MECSOL2022.MSL22-0073
Abstract
This paper describes the development of the procedures for the recovery of transverse stress and displacement components, through post-processing, in dynamic problems of laminated composite plates, based on First-order Shear Deformation Theory (FSDT), modeled using the Generalized Finite Element Method (GFEM). A correction process was added to the post-processing for the integrated stresses in order to fix the boundary conditions on the top surface of the laminate. The objective of this work is to evaluate the influence that this correction procedure has on both integrated stresses and displacements. The post-processing makes use of the results obtained directly from the GFEM models, using constitutive equations, in order to apply them to the general local kinematic and motion equations. Using Chaudhuri Method, with the addition of body and inertial forces, the transverse stresses are obtained, through integration of the local differential equilibrium equations. Displacements are then acquired using stress-strain relations on the recovered transverse stresses. Numerical and analytical solutions are created for comparison of the final results of this procedure.
Keywords
Shear stress and displacement recovery, dynamic analysis, Generalized finite element model, Layered composite structures, First-order shear deformation theory
