Effects of thickness stretching in functionally graded plates and shells

被引：462

作者：

Carrera, E. ^{[1
]}

Brischetto, S. ^{[1
]}

Cinefra, M. ^{[1
]}

Soave, M. ^{[1
]}

机构：

[1] Politecn Torino, Dept Aeronaut & Space Engn, I-10129 Turin, Italy

来源：

COMPOSITES PART B-ENGINEERING | 2011年 / 42卷 / 02期

关键词：

Laminates; Layered structures; Plates; Functionally graded materials; MECHANICAL-BEHAVIOR; TRANSVERSE LOAD; STRESS; LOCKING; SHEAR;

D O I：

10.1016/j.compositesb.2010.10.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present work evaluates the effect of thickness stretching in plate/shell structures made by materials which are functionally graded (FGM) in the thickness directions. That is done by removing or retaining the transverse normal strain in the kinematics assumptions of various refined plate/shell theories. Variable plate/shell models are implemented according to Carrera's Unified Formulation. Plate/shell theories with constant transverse displacement are compared with the corresponding linear to fourth order of expansion in the thickness direction ones. Single-layered and multilayered FGM structures have been analyzed. A large numerical investigation, encompassing various plate/shell geometries as well as various grading rates for FGMs, has been conducted. It is mainly concluded that a refinements of classical theories that include additional in-plane variables could results meaningless unless transverse normal strain effects are taken into account. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：123 / 133

页数：11

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