Nonlinear static analysis of functionally graded porous sandwich plates resting on Kerr foundation

被引:7
作者
Do, Ngoc-Tu [1 ]
Pham, Quoc Hoa [2 ]
机构
[1] Hanoi Univ Ind, Fac Mech Engn, Hanoi, Vietnam
[2] Nguyen Tat Thanh Univ, Fac Engn & Technol, Ho Chi Minh City 700000, Vietnam
关键词
FGP; sandwich plates; Kerr foundation; MITC4; geometrical nonlinear; SHEAR DEFORMATION-THEORY; FREE-VIBRATION ANALYSIS; SIMPLE 4-UNKNOWN SHEAR; HIGHER-ORDER SHEAR; BENDING ANALYSIS; COMPREHENSIVE ANALYSIS; BUCKLING ANALYSIS; REFINED THEORY; SHELL; ELEMENT;
D O I
10.1080/15376494.2023.2218845
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The main purpose of this work is to explore the nonlinear static bending analysis of functionally graded porous sandwich plates with a ceramic core (FSCC) subjected to a transverse uniform load resting on Kerr foundation (KF) using the mixed interpolation of tensorial components for the four-node rectangular element (called MITC4). Porosity appearing in two skin layers is assumed according to the uneven porosity distribution with a porosity factor ?. The advantage of this element is fast convergence, high accuracy and cancels the shear-locking phenomenon. The present study considers the geometrical nonlinearity resulting from mid-plane stretching based on the von Karman geometrical nonlinearity. The first-order shear deformation theory (FSDT) is employed to approximate the displacement field of the plate due to its simplicity and efficiency. The current formulation's authenticity is evaluated by comparing it with previously published works. For the first time, the nonlinear bending of FSCC subjected to a transverse uniform load resting on the Kerr foundation is investigated. Furthermore, the influence of input parameters on the nonlinear bending behavior of FSCC is fully provided.
引用
收藏
页码:5678 / 5691
页数:14
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