TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








On the stress-strain analysis of low-diameter shells in rigid members of main hulls for underwater technology.



Full text article ( in russian)

Year

 
2018

Issue

 
20182

Volume

 
2

Pages

 
64-68

Caption

 
On the stress-strain analysis of low-diameter shells in rigid members of main hulls for underwater technology.

Authors

 
Zhestkov K.G., Konkin A.M., Krasavtsev V.N.

Keywords

 
diameter shell, main hull, rigid member, stress-strain state, simulation, size of finite element.

DOI

 
10.24937/2542-2324-2018-2-S-I-64-68

Summary

 
An analytic design model was developed for evaluating the stress-strain state of a small-diameter shell being a part of an underwater facility hull rigid member. Justification of the considered structural concept was made by using analytical and numerical design models. Analytical relationships of the engineering theory of thin shells and verification finite-element simulation based on parabolic finite elements (FE) are applied.
The relationships for small-diameter shell stress-strain analysis under bending of reinforcing circular stiffeners are obtained. The necessity to meet the design requirements to specifying the characteristic dimension of the shell FE near the reinforcing members is confirmed. The parametric FE dimension depending on the shell radius and thickness near the reinforcing members is a base for generating numerical design models. The latter is especially important in structural optimization problems.

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