Material and Geometric Nonlinear Analysis of Functionally Graded Plate-Shell Type Structures

被引：17
|
作者：
Moita, J. S. [1 ]
Araujo, A. L. [1 ]
Mota Soares, C. M. [1 ]
Mota Soares, C. A. [1 ]
Herskovits, J. [2 ,3 ]
机构：
[1] Univ Lisbon, Inst Super Tecn, LAETA IDMEC, Lisbon, Portugal
[2] Univ Fed Rio de Janeiro, COPPE, Rio De Janeiro, Brazil
[3] IME, Rio De Janeiro, Brazil
来源：
APPLIED COMPOSITE MATERIALS | 2016年 / 23卷 / 04期
关键词：
Functionally graded materials; Finite element model; Material nonlinearity; Geommetric nonlinearity; INVERSE ANALYSIS; FGM PLATES; ELEMENT;
D O I：
10.1007/s10443-016-9473-8
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
A nonlinear formulation for general Functionally Graded Material plate-shell type structures is presented. The formulation accounts for geometric and material nonlinear behaviour of these structures. Using the Newton-Raphson incremental-iterative method, the incremental equilibrium path is obtained, and in case of snap-through occurrence the automatic arc-length method is used. This simple and fast element model is a non-conforming triangular flat plate/shell element with 24 degrees of freedom for the generalized displacements. It is benchmarked in the solution of some illustrative plate- shell examples and the results are presented and discussed with numerical alternative models. Benchmark tests with material and geometrically nonlinear behaviour are also proposed.
引用
收藏
页码：537 / 554
页数：18
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