管道修复用管状纺织复合材料强度的设计原理  

Design principle of intensity of tubular textile composite material applied to pipeline rehabilitation

作　　者：张淑洁[1] 王瑞[1] 王欢[1] 

机构地区：[1]天津工业大学纺织学院,天津300160

出　　处：《复合材料学报》2008年第2期161-165,共5页Acta Materiae Compositae Sinica

基　　金：天津市高等学校科技发展基金计划项目(ZD200720)

摘　　要：管状纺织复合材料以翻衬的方法衬于管道,以"管中管"的形式修复管道,受到翻转压力和输送介质压力的作用,其强度直接影响修复效果。本文中采用材料力学和工程流体力学相关理论,对管状纺织复合材料翻衬时和衬于管道后的受力情况,建立了较为系统且完整的计算公式,并以修复燃气管道为例,对管状纺织复合材料经向和纬向的强度进行了设计。结果表明:管道内压引起的管状纺织复合材料的纬向应力是经向应力的2倍;而翻转压力引起的经向应力,还与翻转速度和温度有关。The tubular textile composite material was lined in the pipeline by inversion, as ＂pipe in pipeline＂ to rehabilitate the pipeline; subjected to the inversion press and medium press, its intensity affects the rehabilitation result. Adopting the correlative theories of material mechanics and engineering hydromechanics, an intact calculation formula to calculate the stress during inversion and lining in pipeline was established, and taking the example of the repaired gas pipeline, the intensity in the axial and circle directions of the tubular textile composite material was designed. The results show that the stress in the axial direction is twice that in the circle direction; and the stress in the circle direction caused by the inversion press is related not only to the inversion press, but also to the inversion rate and temperature.

关 键 词：管道翻衬 修复技术 管状纺织复合材料 强度 设计 

分 类 号：TB330.1[一般工业技术—材料科学与工程]