ArticleOpen Access http://dx.doi.org/10.26855/ea.2023.02.002
Analysis and Improvement of Stress Concentration in Composite Structure Tank Roof
Jingwen Ren*, Bo Liu, Yubin Lv, Chengcai Ge, Xuhui Chen
College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao, Shandong, China.
*Corresponding author: Jingwen Ren
Published: February 28,2023
Abstract
At present, the method of adding reinforcing bars is usually used to improve the poor stability of composite structure tank roof. However, the addition of reinforcement leads to serious stress concentration in the tank top, which seriously affects the service life and safety of the tank top. Therefore, in this paper, the finite element analysis method is used to analyze the stress and strain of the roof of the composite structure with reinforcement under the two conditions of combined load and internal pressure. The stress curves of different positions of reinforcement are output and the stress concentration area is found out. The structure of reinforcement is optimized according to the stress concentration area. The results show that the stress concentration problem of the tank top with reinforcement mainly exists at the lower edge of the reinforcement. Properly extending the reinforcement length can effectively improve the degree of stress concentration, and the maximum stress in the stress concentration area can be reduced by more than 60%. The results can provide guidance for the design and optimization of composite structure tank roof.
Keywords
Composite structure tank roof, Glass fiber, Stress concentration, stiffener
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How to cite this paper
Analysis and Improvement of Stress Concentration in Composite Structure Tank Roof
How to cite this paper: Jingwen Ren, Bo Liu, Yubin Lv, Chengcai Ge, Xuhui Chen. (2023). Analysis and Improvement of Stress Concentration in Composite Structure Tank Roof. Engineering Advances, 3(1), 11-14.
DOI: http://dx.doi.org/10.26855/ea.2023.02.002