玄武岩纤维缠绕复合管径向压缩力学性能  

Radial compression mechanical properties of basalt fiber wound composite pipes

作　　者：杨锐 张杰[1,2] 曾云 孙浩铭 向东 刘兴华 YANG Rui;ZHANG Jie;ZENG Yun;SUNHao-ming;XIANG Dong;LIU Xing-hua(School of Mechanical Engineering,Southwest Petroleum University,Chengdu 610500,China;Oil and Gas Equipment Technology Sharing Service Platform of Sichuan Province,Chengdu 610500,China;School of New Energy and Materials Southwest Petroleum University,Chengdu 610500,China;Zhanjiang Branch of CNOOC Safety&Technology Services Co.Ltd.,Zhanjiang 524057,China)

机构地区：[1]西南石油大学机电工程学院,四川成都610500 [2]油气装备技术四川省科技资源共享服务平台,四川成都610500 [3]西南石油大学新能源与材料学院,四川成都610500 [4]中海油安全技术服务有限公司湛江分公司,广东湛江524057

出　　处：《兰州理工大学学报》2025年第2期23-30,共8页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(12102374);陕西省重点研发计划项目(2024CY-GJHX-05)。

摘　　要：为提高玄武岩纤维缠绕复合管的承载能力和工程适应范围,基于试验和数值仿真研究了径向载荷作用下玄武岩纤维缠绕复合管力学特性和失效模式,探究了缠绕角度、单层厚度、径厚比等结构参数对其失效机理的影响.结果表明:径向压载作用下复合管的失效模式为基体拉伸损伤与纤维拉伸损伤,失效区由塑性绞线区域随径向压缩位移增大逐步扩散到整个管道;复合管的最大径向承载力与总吸能随着纤维缠绕角度增大而增大,随径厚比增大而减小;增大单层厚度可提高复合管承载力,但导致变形过程中复合管塑性铰承受更大弯矩,造成管道截面从椭圆状逐渐变成“眼镜”状,反之则会使管道呈“扁平”状变化.To improve the bearing capacity and engineering adaptability of basalt fiber wrapped composite pipes,the mechanical properties and failure modes of basalt fiber wrapped composite pipes under radial loads were studied based on experiments and numerical simulations.Effects of winding angle,single-layer thickness,diameter to thickness ratio,and other structural parameters on the composite pipe’s failure mechanism were discussed.The results showed that the failure modes of composite pipes under radial compression are matrix tensile damage and fiber tensile damage.The failure zone gradually spreads from the plastic stranded wire area to the entire pipeline as the radial compression displacement increases.The maximum radial bearing capacity and total energy absorption of the composite pipe increase with the increasing of fiber winding angle but decrease with the increasing of diameter to thickness ratio.Increasing the single layer thickness can improve the bearing capacity of composite pipes but result in the plastic hinge of the composite pipe bearing a greater bending moment during deformation,causing the pipe section gradually change from an elliptical shape to a“glasses”shape.On the contrary,it will cause the pipe to change in a“flat”shape.

关 键 词：玄武岩纤维 复合管 径向压载 失效模式 承载能力 

分 类 号：TB332[一般工业技术—材料科学与工程]