COMPOSITES SCIENCE AND ENGINEERING ›› 2022, Vol. 0 ›› Issue (8): 35-43.DOI: 10.19936/j.cnki.2096-8000.20220828.005

• APPLICATION RESEARCH • Previous Articles     Next Articles

Research on burst strength and fatigue performance of carbon fiber wound composite cylinder with aluminum alloy liner

KANG Kai1, ZU Lei1, WU Qiao-guo2*, ZHANG Qian1, ZHANG Gui-ming1   

  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
  • Received:2021-08-30 Online:2022-08-28 Published:2022-09-27

Abstract: In this paper, the relationship between burst pressure and fatigue life of carbon fiber wound composite cylinders with aluminum alloy liner is studied by means of experimental tests and numerical simulations. The design and manufacture of carbon fiber wound composite cylinders with aluminum alloy liner were carried out, and the hydrostatic burst and fatigue performance tests were carried out. The burst pressure, fatigue life and failure morphology of the cylinders were obtained. The burst pressure prediction method based on progressive damage analysis model and the fatigue life prediction method based on Morrow mean stress correction and Manson-Coffin equivalent strain are proposed, and the prediction results agree with the tests. The influence of cylinder design parameters on burst pressure and fatigue life is analyzed. It reveals that under the condition of higher nominal pressure or larger diameter of the cylinder, it is difficult for the cylinder with 2.25 times burst safety factor to meet the requirements of minimum burst pressure and minimum fatigue life at the same time only by autofrettage, and it is necessary to appropriately increase the burst safety factor or the thickness of the cylinder.

Key words: carbon fiber wound cylinder, aluminum alloy liner, fatigue life, burst pressure, parameter analysis

CLC Number: