大管径螺旋缠绕高压玻璃钢管缠绕角度对其强度的影响研究

摘要

The failure strength of the hydrostatic test of large diameter spirallywound high strength FRP pipe changed obviously caused by the change of the winding angle was analyzed. Producing 3 each type of DN150 high pressure FRP pipes by set different winding angles of 30° , 35°, 40°, 45°, 60°, 75°, 85° with producing processes and parameters unchanged. Failure strength tests of short term water pressure and longitudinal tensile tests were carried out under the same conditions. The influence of the winding angle on the strength of spirally wound high pressure FRP pipe was summarized through the analysis of the experimental data.%针对大管径螺旋缠绕高压玻璃钢管在实际生产过程中因缠绕角度的变化导致其短时水压失效强度发生明显变化进行分析，通过设定系列缠绕角度，在确保其它工艺及生产参数不变的情况下，生产30°、35°、40°、45°、60°、75°、85°缠绕角DN150高压玻璃钢管各3根，在相同条件下进行短时水压失效强度试验及纵向拉伸试验，分析试验数据总结出螺旋缠绕高压玻璃钢管缠绕角度对其强度影响的规律。