带圆孔复合材料板壳的有限元分析

A FINITE ELEMENT ANALYSIS OF LAMINATED COMPOSITE PLATES AND SHELLS WITH CIRCULAR HOLES

摘要

摘要: 本文把高精度三角形元用于复合材料板、柱壳结构的一般线性静力、稳定、振动问题,导出了有限元分析中的基本公式;并提出了自动生成高精度三角形元单元矩阵的方法,从而避免了繁琐的单元矩阵公式推导.文中重点分析了带有圆孔的复合材料柱形曲板的振动特性,算例表明:计算结果精度是好的.

Abstract: This peper presents the analysis of composite plates arid cylindrical shells with holes by a high precision triangular finite element.The analysis includes general static problem,stability anal vibration of the structures.Fundamental formulas have been berived and a method generating automatically the element matrices is also presented.The vibration characteristics of composite cylindrical panels with a circular hole is mainly analyzed.Examples show that good computtational precison exits.