Composites Science and Engineering ›› 2020, Vol. 0 ›› Issue (9): 17-24.

• BASIC STUDY • Previous Articles     Next Articles

STUDY ON THICKNESS OF LINING LAYER OF FLEXIBLE PIPE BONDED BY GLASS FIBER REINFORCED COMPOSITES FOR OIL AND GAS TRANSMISSION

LI Ping1, YAN Ting-jun1*, LI Peng1, CONG Ri-feng2   

  1. 1. College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Shandong Guantong Pipe Industry Co., Ltd., Weihai 264207, China
  • Received:2019-11-26 Online:2020-09-28 Published:2020-09-28

Abstract: The inner liner plays a supporting role in the manufacturing process of glass fiber reinforced composite bonded flexible pipe. To ensure the strength of the lining layer, the method of increasing wall thickness is usually adopted, which will not only increase the manufacturing cost of the pipe, but also reduce the flexibility of the pipe. In order to ensure the accuracy of the finite element simulation results, the mechanical properties of the material used in the lining layer were measured by mechanical properties experiments. According to the mechanical characteristics of the lining layer, the effects of winding mode, number of winding layers and hot melt temperature on the thickness of the lining layer were studied. ABAQUS finite element analysis software was used to calculate the minimum thickness of the lining layer of glass fiber reinforced composite bonded flexible pipe with a diameter of 65 mm, which provides a theoretical reference for the reasonable selection of the inner liner thickness.

Key words: bonded flexible pipe, lining layer thickness, manufacturing process, strength analysis, finite element analysis, composites

CLC Number: