Abstract

Failure tests for internal pressurized composite pipe system joined by using different radii pipes were carried out by the finite element method and experimental tests. The composite pipes were produced from E glass fiber/epoxy. DP410 and DP490 type adhesives were used to join the composite pipes. The numerical results and experimental results were compared. It was shown that the numerical analyzes results were close to experimental results. Tangential, radial, axial, and shear stress values on composite pipes and adhesive layers were obtained via numerical analyses in the radial direction. Additionally, the von Mises stress distributions were obtained on the adhesive. The effects of adhesive layer lengths, adhesives types, and orientation angle on the effect of the joint zone were investigated.

摘要

采用有限元法和实验试验对不同半径管道连接的内压复合管道系统进行了失效试验。复合管由 E 玻璃纤维/环氧树脂制成。DP410 和 DP490 型粘合剂用于连接复合管。将数值结果与实验结果进行了比较。结果表明，数值分析结果与实验结果接近。通过径向方向的数值分析获得复合管和粘合剂层上的切向、径向、轴向和剪切应力值。此外，还获得了粘合剂上的 von Mises 应力分布。研究了粘合剂层长度、粘合剂类型和取向角对接合区影响的影响。