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对钢丝缠绕增强塑料复合管的短期爆破压力、应变、临界失稳压力和不同温度下的失效形式等进行了系统的试验研究。结果表明,与相同规格尺寸的PE管相比,其短期爆破压力、环向刚度和临界失稳压力分别提高了 129％、19％和57％;在内压作用下这种复合管有韧性破坏和过度变形两种失效模式,温度低于45℃时为韧性破坏,温度高于45℃时为过度变形;在相同压力下仅受径向内压作用时这种复合管的径向膨胀率明显高于径向轴向同时受力时的径向膨胀率。
A systematic experimental study on the short-term burst pressure, strain, critical buckling pressure and failure modes at different temperatures of the steel wire wound plastic pipe was carried out. The results show that the short-term burst pressure, circumferential stiffness and critical buckling pressure are increased by 129%, 19% and 57%, respectively, compared with the PE pipe of the same size and size. The composite pipe has ductile failure under the internal pressure And over-deformation of the two failure modes, the temperature below 45 ℃ for the ductile failure, the temperature is higher than 45 ℃ over-deformation; under the same pressure only by radial internal pressure when the composite tube radial expansion rate significantly Higher than the radial axial stress at the same time the radial expansion rate.