| 带包边的对称正交铺层复合材料层板分层问题的解析——广义变分解法 |
| |
| 引用本文： | 孟庆春,张行.带包边的对称正交铺层复合材料层板分层问题的解析——广义变分解法[J].北京航空航天大学学报,1991(4). |
| |
| 作者姓名： | 孟庆春 张行 |
| |
| 作者单位： | 北京航空航天大学飞行器设计与应用力学系
(孟庆春),北京航空航天大学飞行器设计与应用力学系(张行) |
| |
| 摘 要： | 对于对称正交铺层复合材料层板单向受拉分层问题,本文根据穆什海里什维利的求解各向同性平面问题与列赫尼兹基的求解各向异性平面问题的复变函数方法,得到了满足所有基本方程、裂纹表面边界条件与层间连续条件的应力场、位移场的本征展开式。对于包边与不包边这两种情况,本文利用分区广义变分原理代替裂纹表面以外的边界条件,确定奇异应力场的控制量。由于所有基本方程预先得以满足,在变分方程中只有线积分而无面积分。计算表明,本方法前期准备工作简单,计算节省机时,结果收敛迅速。
|
| 关 键 词： | 分层 包边 解析——广义变分解法 |
ANALYTICAL-GENERALIZED VARIATIONAL METHOD OFSOLUTION FOR DELAMINATIONS OFLAMINATES WITH U-CAP |
| |
| Meng Qingchun Zhang Xing.ANALYTICAL-GENERALIZED VARIATIONAL METHOD OFSOLUTION FOR DELAMINATIONS OFLAMINATES WITH U-CAP[J].Journal of Beijing University of Aeronautics and Astronautics,1991(4). |
| |
| Authors: | Meng Qingchun Zhang Xing |
| |
| Institution: | Dept. of Flight Vehicle Design and Applied Mech. |
| |
| Abstract: | In this paper,the delamination solution of composite laminates,orthogonally and symmetrically stacked under axial tension and adhered with a "U-cap"is given. First of all,the eigen function expansions of stress and displacement fields, satisfying all of the basic equations boundary conditions on crack surfaces and conditions of continuities between different plies are derived. The govering parameter of singular stress field are determined by the generalized variational priciple for multi-regions, and compared with the solution for delamination of laminates without "U-cap". |
| |
| Keywords: | delamination U-cap analytical-generalized variational method |
| 本文献已被 CNKI 等数据库收录！ |
