摘要
在复合管结构的基础上添加了阻隔层,并基于有限元模拟建立了高阻隔非金属柔性复合管三维模型,分析了复合管阻隔层几何及工艺参数对承压性能的影响,确定了阻隔层最佳参数。结果表明,高阻隔非金属柔性复合管承压时,芳纶增强层应力最大,其次为铝箔阻隔层,内衬层和外保护层应力最低;铝箔阻隔层厚度对复合管承压性能影响最大,其次为摩擦因数的影响,铝箔层宽度和缠绕角度的影响最低;综合考虑管道应力和设计成本,确定铝箔阻隔层最佳厚度为0.15 mm,最佳宽度为200 mm,最佳缠绕角度为70(°)。
A barrier layer was added according to the structure of the composite pipe,and a three⁃dimensional model was established for high barrier non⁃metallic flexible composite pipes based on the finite element simulation.The influence of geometry and process parameters of the barrier layer on the pressure⁃bearing performance of the composite pipes was ana⁃lyzed,and the optimal parameters of the barrier layer were determined.The results indicated that the stress of the aramid reinforced layer reached a maximum,followed by the aluminum foil barrier layer when the high barrier non⁃metallic flexi⁃ble composite pipes were under pressure.The stresses of the inner lining layer and outer protective layer were the low⁃est.The thickness of the aluminum foil barrier layer generated the greatest influence on the pressure bearing performance of the composite pipes,followed by the influence of friction coefficient.The influence of width and winding angle of the aluminum foil layer was the lowest.Considering the pipeline stress and design cost,the optimum thickness,width,and winding angle of the aluminum foil barrier layer were determined to be 0.15 mm,200 mm,and 70°,respectively.
作者
张学敏
王庆岗
张雪茹
李厚补
齐国权
丁晗
高雄
杨文辉
ZHANG Xuemin;WANG Qinggang;ZHANG Xueru;LI Houbu;QI Guoquan;DING Han;GAO Xiong;YANG Wenhui(School of Materials Science and Engineering,Chang'an University,Xi'an 710064,China;CNPC Tubular Goods Research Institute,Xi'an 710077,China;Shaanxi Yanchang Petroleum Northwest Rubber LLC,Xianyang 712023,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2023年第12期70-77,共8页
China Plastics
基金
国家自然科学基金面上项目(52274069)
陕西省重点研发计划一般项目(2023⁃YBGY⁃177)
长安大学中央高校基本科研业务费专项基金项目(300102310201、300102311403)。
关键词
非金属柔性复合管
有限元模拟
铝箔阻隔层
承压性能
non⁃metallic flexible composite pipe
finite element simulation
aluminum foil barrier layer
bearing capacity
