Adaptability analysis of three dimensional stress calculation method for inside ring-stiffened cylindrical shell
The three dimensional stress analysis method accounting the influence of in-plane normal loads and stress can calculate structural stress at any position of ring-stiffened cylindrical shell.This paper derived typical stress calculation formula for inside ring-stiffened cylindrical shell based on three dimensional stress analysis method,and verified correctness of the calculation formula through examples in literature.A series of calculation are conducted on inside ring-stiffened cyl-indrical shell using the formulas.Comparing with finite element simulation,the adaptability of typical stress calculation for-mula to different structural characteristic parameters such as shell thickness,ring-stiffened height,and ring-stiffened width was analyzed.The results show that the formulas in this paper not only can adapt to the stress calculation of thin shell and medium-thick shell,but also have good adaptability to different ring-stiffened shapes.
three dimensional stressinside ring-stiffened cylindrical shellstructural characteristic
万方数据
维普
