By using the analysis solution of differential equations based on thinshelltheory, the stresses in pressurized long cylinder or piping stiffened with stiffeners were analyzed.
The basic fluid-solid interaction formulas for a shell in fluid are given using elasticity theory of thin shells and fundamental equations of fluid mechanics.
应用薄壳弹性理论及流体力学基本方程，给出了圆柱壳在流体中流固耦合问题的基本关系式。
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If we let the transverse shear stiffness approach to infinity, the governing equation of refined theory can be reduced to the classical thinshell equation.