基于超声透射特性的复合材料粘接结构粘接质量预测

doi:10.3901/JME.2024.04.230

机械工程学报 ›› 2024, Vol. 60 ›› Issue (4): 230-238.doi: 10.3901/JME.2024.04.230

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基于超声透射特性的复合材料粘接结构粘接质量预测

宋国荣, 宋协宏, 吕炎, 刘兵, 何存富, 吴斌

北京工业大学材料与制造学部北京 100124

收稿日期:2023-06-21 修回日期:2023-10-24 出版日期:2024-02-20 发布日期:2024-05-25
通讯作者: 吕炎,男,1985年出生,博士,教授,博士研究生导师。主要研究方向为超声无损检测、力学性能检测和智能传感器与结构健康检测等。E-mail:lvyan@bjut.edu.cn
作者简介:宋国荣,女,1963年出生,博士,教授,硕士研究生导师。主要研究方向为智能仪器与虚拟仪器、计算机测试与控制技术、传感器及精密测量、无损检测新技术等。E-mail:grsong@bjut.edu.cn
基金资助:
国家自然科学基金(11972052,12072004); 市教委科研计划(KZ202110005005); 北京市教委科研计划一般(KM201710005012)资助项目

Prediction of Bonding Quality of Composite Bonded Structures Based on Ultrasonic Transmission Characteristics

SONG Guorong, SONG Xiehong, LÜ Yan, LIU Bing, HE Cunfu, WU Bin

Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124

Received:2023-06-21 Revised:2023-10-24 Online:2024-02-20 Published:2024-05-25

摘要/Abstract

摘要： 以非接触式超声检测方法为基础,对复合材料粘接结构的粘接质量进行仿真与试验探究。首先,建立复合材料粘接结构的超声透射特性时域仿真模型,提取其频域透射系数谱,并着重分析界面弱化及内聚弱化对粘接结构中超声透射特性的影响规律。同时,仿真所得不同粘接状态的超声透射系数频谱与平面波理论的计算结果吻合良好。此外,制备具有不同粘接界面状态及胶层内聚弱化状态特征的纤维增强复合材料(Fiber reinforced polymer,FRP)粘接结构。基于水浸超声测量系统,试验探究不同粘接界面状态及内聚弱化状态对超声透射系数谱的影响,分析粘接结构中超声透射特性随其粘接质量的变化关系,并与仿真结果一致。此外,根据复合材料粘接结构中粘接质量与超声透射特性之间的映射关系,亦为复合材料粘接结构的无损表征与评价奠定了坚实基础。

关键词: 粘接结构, 复合材料, 弱粘接, 超声透射, 水浸试验

Abstract: Based on the non-contact ultrasonic testing method, the bonding quality of composite bonding structure is simulated and experimentally explored. Firstly, the time-domain simulation model of ultrasonic transmission characteristics of composite bonded structures is established, the frequency-domain transmission coefficient spectrum is extracted, and the effects of interface weakening and cohesion weakening on ultrasonic transmission characteristics of bonded structures are analyzed. At the same time, the spectrum of ultrasonic transmission coefficient in different bonding states is in good agreement with the calculation results of plane wave theory.In addition, fiber reinforced composite(FRP) bonding structures with different bonding interface states and adhesive layer cohesion weakening states were prepared. Based on the water immersion ultrasonic measurement system, the effects of different bonding interface states and cohesion weakening states on the ultrasonic transmission coefficient spectrum are experimentally investigated.The relationship between the ultrasonic transmission characteristics in the bonding structure and the bonding quality is analyzed,which is consistent with the simulation results. In addition, according to the mapping relationship between bonding quality and ultrasonic transmission characteristics in composite bonding structures, it also lays a solid foundation for nondestructive characterization and evaluation of composite bonding structures.

Key words: bonding structure, compound material, weak adhesion, ultrasonic transmission, water immersion experiment

中图分类号:

TB551

宋国荣, 宋协宏, 吕炎, 刘兵, 何存富, 吴斌. 基于超声透射特性的复合材料粘接结构粘接质量预测[J]. 机械工程学报, 2024, 60(4): 230-238.

SONG Guorong, SONG Xiehong, LÜ Yan, LIU Bing, HE Cunfu, WU Bin. Prediction of Bonding Quality of Composite Bonded Structures Based on Ultrasonic Transmission Characteristics[J]. Journal of Mechanical Engineering, 2024, 60(4): 230-238.

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基于超声透射特性的复合材料粘接结构粘接质量预测

Prediction of Bonding Quality of Composite Bonded Structures Based on Ultrasonic Transmission Characteristics

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