管道碳纤维复合材料修复层阵列超声检测方法提高检测精度  

Ultrasonic phased array detection method for improving detection accuracy of repair layers in pipeline carbon fiber composite materials

作　　者：李荣光 朱甜甜 孙伶 陈斯迅 周文彬[2] 周正干[2] LI Rongguang;ZHU Tiantian;SUN Ling;CHEN Sixun;ZHOU Wenbin;ZHOU Zhenggan(National Pipeline Network Group Northern Pipeline Co.,Ltd.,Langfang,Hebei,065000,China;School of Mechanical Engineering and Automation,Beihang University,Changping,Beijing 102206,China)

机构地区：[1]国家管网集团北方管道有限责任公司,河北廊坊065000 [2]北京航空航天大学机械工程及自动化学院,北京昌平102206

出　　处：《石油钻采工艺》2024年第6期728-742,共15页Oil Drilling & Production Technology

摘　　要：(目的意义)管道碳纤维复合材料修复作为一种新型修复技术,被广泛应用于管道油气储运等多个领域,然而由于复合材料修复层的高衰减性、各向异性和多层结构的影响,导致超声无损检测困难。(方法过程)为解决上述技术难题,引入一种基于声线示踪的阵列超声线性C扫描成像方法,通过准确计算阵列超声聚焦法则,实现了对碳纤维复合材料修复层内部缺陷的高分辨率、高精度成像。(结果现象)对典型缺陷试样开展检测实验,结果表明对于层间脱粘缺陷和界面脱粘缺陷均可有效检测,相比传统的均质化方法,缺陷漏检率降低25%,缺陷定量平均精度提高46.6%。(结论建议)说明阵列超声检测技术应用与管道复合材料修复层检测是完全可行的,为管道修复层的质量评估提供了一种有效的非破坏性检测手段。Pipeline carbon fiber composite material repair,as a novel repair technology,is widely applied in fields such as oil and gas transportation and storage.However,due to the high attenuation,anisotropy,and multi-layered structure of the composite material repair layer,ultrasonic non-destructive testing(NDT)becomes challenging.To solve the above technical problems,this paper proposes a linear C-scan imaging method based on acoustic ray tracing.By accurately calculating the array ultrasonic focusing laws,high-resolution and high-precision imaging of internal defects in the composite material repair layer is achieved.Experimental tests on typical defect specimens demonstrate that both interlaminar delamination and interface delamination defects can be effectively detected.Compared to traditional homogenization methods,the defect missed detection rate is reduced by 25% and the average defect quantification accuracy is improved by 46.6%.These results indicate that array ultrasonic testing technology is fully applicable to the detection of composite material repair layers in pipelines,providing an effective non-destructive testing solution for the quality assessment of pipeline repair layers.

关 键 词：阵列超声 碳纤维复合材料 管道修复层 油气储运 无损检测 缺陷检测 声线示踪 超声成像 

分 类 号：TB332[一般工业技术—材料科学与工程] TB553[理学—物理]