线布载荷作用下碟形扁壳的非线性稳定

本文对轴对称线布载荷作用下碟形扁壳的非线性稳定问题进行了分析，得到了各种常见边界条件下碟形扁壳特征关系的二次近似表达式·讨论了几何参数β。

复合材料层合圆柱正交异性扁球壳在线布载荷作用下的非线性稳定性

建立了在线布载荷作用下的复合材料层合圆柱正交异性扁球壳的弯曲控制方程,分析了在固定夹支边界条件下的非线性弯曲问题,采用修正迭代法得到了临界载荷的解析解,此解可直接应用到工程设计中.

扁锥壳在线而荷载作用下的非线性稳定分析

对轴对称线布荷载作用下圆底扁锥壳的非线性稳定特性进行了分析。利用积分方程法和修正迭代法，得到了各种常见边界条件下扁锥壳特征关系的二次近似表达式。讨论了几何参数。ｖ、ｋ及边界条件对扁锥壳非线性稳定特性的影响。

PREPROCESSING AND POSTPROCESSING SYSTEM FOR FINITE ELEMENT COMPUTATION

This paper discusses some aspects of finite element computation,such as the automatic generation of finite element ,refinement of mesh,process of node density, distribution of load,optimum design and the drawing of stress contour, and describes the developing process of software for a planar 8 node element.

Flexural response of doubly curved laminated composite shells

In the present work, analytical solutions for laminated composite doubly curved panels on rectangular plan form undergoing small deformations and subjected to uniformly distributed transverse load have been obtained. The problem is formulated using first order shear deformation theory. The spatial descretization of the linear differential equations is carried out using fast converging finite double Chebyshev series. The effect of panel thickness, curvature, boundary conditions, lamination scheme as well as material property on the static response of panel has been investigated in detail.