纵筋加强的凸锥柱结合壳应力状态的有限元分析

本文应用SAP5程序对均匀外压下纵筋加强的凸锥拄结合壳的应力状态作有限元分析。计算结果与钢模试验值一致。它揭示了该结构的力学特性,证明采用纵筋加强能有效地降低凸锥柱结合壳在结合边附近的高应力。本研究为潜艇的结构设计提供了一种简易可行,且行之有效的加强方法。

Finite Element Analysis of Stress Condition for Convex Cone-Cylindrical Jointed Shell Stiffened with Longitudinals

In this paper, the stress condition for convex cone-cylid ical jointed shell under uniform external pressure is analysed by finite element method with SAP5 program. The calculated results are in good agreement with the data obtained from steel model test. The present analysis reveals mechanical characteristics of such structure and proves the fact that the high stress cf near intersection of convex cone-cylindrical jointed shell can be efficiently reduced. A simple and effective strengthening method is also presented for structural design of submarines.