COMPOSITES SCIENCE AND ENGINEERING ›› 2022, Vol. 0 ›› Issue (10): 5-12.DOI: 10.19936/j.cnki.2096-8000.20221028.001

• BASIC STUDY •     Next Articles

Optimization design of winding parameters of composite shell based on nonlinear finite element theory

ZU Lei1, FAN Wen-jun1, ZHANG Qian1*, MOU Xing1, WU Shi-jun1, ZHANG Gui-Ming1, WU Qiao-guo2, GENG Hong-bo3   

  1. 1. School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China;
    2. College of Civil Engineering, Hefei University of Technology, Hefei 230009, China;
    3. Inner Mongolia Aerospace Honggang Machinery Co., Ltd., Hohhot 010000, China
  • Received:2021-10-14 Online:2022-10-28 Published:2022-11-01

Abstract: Based on nonlinear finite element theory, the winding parameters of composite shell under internal pressure was optimized. Based on the conical shell element and thin shell theory, the strength analysis model of composite shell was established. The results were in agreement with the hydraulic test results of solid rocket motor case, and the comparison results with the commercial finite element software ABAQUS show that the model has high computational efficiency and can be used in the stress analysis of the composite shell and the burst pressure prediction. The strength analysis model and genetic algorithm were used to optimize the slip coefficient of non-geodesic winding of composite shell. The results show that the bursting pressure is the highest when the slip coefficient is 0.19, which is 10.7% higher than that of geodesic winding. The results show that this platform can be used to optimize the sliding coefficient of the spiral layer to achieve the best mechanical properties of the composite shell.

Key words: composite shell, finite element method, geometry nonlinear analysis, non-geodesic winding, optimization design

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