thick-cylinder theory

The limit loading formulae of thick-walled tube with differential strength in tension and compression are derived in the twin shear unified strength theory under the combined actions of both an inner pressure and axial force.

应用双剪统一强度理论，考虑材料的拉压异性和同性，推导了在内压和轴力联合作用下的厚壁圆筒的塑性极限载荷表达式。

It is significant to study its basic theory because Screw Die has advantaged superiority in producing wide and thick rubber sheet.

由于螺杆分配机头在生产宽幅厚胶板时有得天独厚的优势，故对螺杆分配机头展开理论研究是一项非常有意义的工作。

So long as proper handling is conducted, the shell theory can be applied to axisymmetric thick shell. Thus the problem of three dimensional elasticity can be avoided.

只要恰当处理，薄壳理论可用于轴对称的厚壳，因而回避了厚壳的三维空间弹性力学的问题。

Moderately thick shell theory analysis of free vibrations of submerged spherically isotropic spherical shell

浸没的球面各向同性球壳自由振动的中厚壳理论

A 20 DOF hybrid stress element based upon Mindlin plate theory is developed by using the optimization design method for thin and moderately thick shell.

文章把杂交元的优化设计原理用于厚薄壳问题，构造了正交曲线坐标系中的Mindlin型四节点二十自由度壳元。