COMPOSITES SCIENCE AND ENGINEERING ›› 2024, Vol. 0 ›› Issue (9): 92-97.DOI: 10.19936/j.cnki.2096-8000.20240928.014

• APPLICATION RESEARCH • Previous Articles     Next Articles

Prediction and analysis of burst pressure of type Ⅳ composite cylinder based on progressive damage

FU Chengjian1, LIN Song2, GUO Shufen1*   

  1. 1. FTXT Energy Technology Co., Ltd., Baoding 071000, China;
    2. North China Institute of Aerospace Engineering, Langfang 065000, China
  • Received:2024-02-19 Online:2024-09-28 Published:2024-10-18

Abstract: In this paper, Hashin failure criterion was introduced, USDFLD subroutine was compiled, and finite element numerical simulation of type Ⅳ composite cylinder based on progressive damage was realized by ABAQUS-WCM software. Finally, the composite cylinders were prepared and verified by blasting experiment. The finite element analysis (FEA) results of progressive damage show that the maximum diameter circle of the metal joint and the transition position between the cylinder and the head of the Ⅳ composite cylinder are easy to cause the stress concentration of the composite layer, which is the first position where the tensile fracture failure of the resin matrix and the fiber occurs, and the failure of the resin matrix is prior to the failure of the fiber, and the failure area is larger. The results of composite cylinder blasting results show that the predicted blasting pressure and failure position are close to the real test results, which verifies the validity of the FEA model.

Key words: composite gas cylinder, finite element analysis, progressive damage, burst pressure

CLC Number: