| 带旋转自由度的四边形平板壳单元 |
| |
| 引用本文： | 康澜,张其林.带旋转自由度的四边形平板壳单元[J].同济大学学报(自然科学版),2009,37(2). |
| |
| 作者姓名： | 康澜 张其林 |
| |
| 作者单位： | 同济大学,土木工程学院,上海,200092 |
| |
| 基金项目： | 高等学校博士学科点专项科研基金 |
| |
| 摘 要： | 基于Kirchhoff假设,运用广义协调技术,将线位移和转角位移相互独立的位移场引入面内旋转自由度,构造出任意四边形4节点24自由度的平板壳单元;运用U.L.列式,建立了该单元的切线刚度矩阵.算例表明,该单元在板壳结构几何非线性分析中具有良好的精度,且能很好地解决梁单元和板壳单元的连接过渡问题.
|
| 关 键 词： | 平板壳单元 旋转自由度 广义协调 几何非线性 |
A Quadrilateral Flat Shell Element with Rotational Degrees of Freedom |
| |
| KANG Lan and ZHANG Qilin.A Quadrilateral Flat Shell Element with Rotational Degrees of Freedom[J].Journal of Tongji University(Natural Science),2009,37(2). |
| |
| Authors: | KANG Lan and ZHANG Qilin |
| |
| Institution: | School of Civil Engineering,Tongji University,Shanghai 200092,China;School of Civil Engineering,Tongji University,Shanghai 200092,China |
| |
| Abstract: | Based on Kirchhoff assumptions and generalized conforming theory,a new 4 node and 24 degree quadrilateral flat shell element is presented with vertical rotational freedoms of degree,and mutually independent translation displacements and rotational displacements.Furthermore,the tangent stiffness matrix is constructed for the element on the basis of the Update Lagrange formulation.The numerical examples show that the present element performs well for linear and nonlinear bending,which resulting in easy transition between beam element and shell element. |
| |
| Keywords: | |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《同济大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《同济大学学报(自然科学版)》下载免费的PDF全文 |
|
