Open AccessBuckling analysis of functionally graded sandwich plates resting on Pasternak foundation using a novel refined quasi-3D third-order shear deformation theory
Author(s) -
Vu Tan Van,
Nguyễn Văn Hiếu
Publication year - 2022
Publication title -
khoa học công nghệ xây dựng
Language(s) - English
Resource type - Journals
eISSN - 2734-9489
pISSN - 2615-9058
DOI - 10.31814/stce.huce(nuce)2022-16(1)-06
Subject(s) - buckling , structural engineering , materials science , shear (geology) , foundation (evidence) , plate theory , geometry , boundary value problem , mathematics , mathematical analysis , composite material , engineering , archaeology , history
This study presents a numerical model for buckling analysis of the functionally graded sandwich plates (FGSP) laid on the elastic foundation through the Moving Kriging interpolation-based meshless method using a refined quasi-3D third-order shear deformation theory. The in-plane displacements encompassed a new third-order polynomial in terms of the thickness coordinate, will satisfy the natural vanishing of transverse shear stresses on the top and bottom surfaces. Furthermore, the displacement fields approximated by only four variables with accounting for the thickness stretching effect can lead to the reduction of computational time. Comparison investigations are studied to justify the accuracy of the present method. The influence of the aspect ratios, gradient index, and elastic foundation parameters on the normalized buckling load of FGSP is also studied and discussed.