Lamb wave real-time monitoring for curing process of epoxy resin under the condition of medium temperature environment
摘 要
提出了一种适用于85℃“中温环境”监测环氧树脂固化过程的Lamb波实时监测系统,在85℃“中温环境”下选用兼有A0模式和S0模式的Lamb波监测了钢槽中不同厚度环氧树脂的固化过程,研究了超声Lamb波声衰减系数随环氧树脂固化时间的变化规律。结果表明,固化过程中环氧树脂A0模式Lamb波声衰减系数一致性差、不稳定;S0模式Lamb波声衰减系数一致性好且稳定,呈现先小幅度下降后急速上升,然后逐渐下降并趋于平稳的变化趋势,能够准确反应环氧树脂初始黏流态、凝胶态和玻璃态等不同固化状态。基于超声Lamb波固化过程在线监测方法为树脂基复合材料成型工艺的设计和优化提供了基础数据和技术支撑。
Abstract
In this paper, a Lamb wave real-time monitoring system for monitoring curing process of epoxy resin at the medium temperature of 85℃ is proposed. The curing process of epoxy resin with different thickness in steel tank was monitored by both A0 mode and S0 mode of Lamb waves at the medium temperature of 85℃ and the change law of the attenuation coefficient of Lamb waves with curing time of epoxy resin was studied. The results show that acoustic attenuation coefficient of A0 mode inepoxy resin in the curingprocess has poor consistency and instability, while acoustic attenuation coefficient of S0 mode has good consistency and stability, which first decreases slightly, then increases rapidly, and then gradually decreases and tends to be stable. It can accurately characterize different curing stages of epoxy resin including the initial viscous flow, gel and glass stages. This study provides basic data and technical support for the design and optimization of resin matrix composite molding process based on Lamb wave on-line monitoring method.
中图分类号 TB332 TG115.28 DOI 10.11973/wsjc202304013
所属栏目 试验研究
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收稿日期 2022/7/20
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备注岳登魁(1996—),男,硕士研究生,主要研究方向为信息与通信工程,材料检测
引用该论文: YUE Dengkui,WU Qizhou,YANG Yajun,YAN Xiulin. Lamb wave real-time monitoring for curing process of epoxy resin under the condition of medium temperature environment[J]. Nondestructive Testing, 2023, 45(4): 63~68
岳登魁,吴其洲,杨亚军,闫秀玲. “中温环境”环氧树脂固化过程的Lamb波实时监测[J]. 无损检测, 2023, 45(4): 63~68
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参考文献
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【2】SILVIA G,PROLONGO.Comparative study on the adhesive properties of different epoxy resins[J].International Journal of Adhesion and Adhesives,2006,26(3):125-132.
【3】FAN-LONG, JIN.Synthesis and application of epoxy resins:a review[J].Journal of Industrial and Engineering Chemistry,2015,29:1-11.
【4】张宝华,叶俊丹,陈斌,等.固化温度对环氧树脂固化物性能的影响[J].塑料工业,2009,37(9):64-66,79.
【5】黄蕾霖,邵宇鹰,庞拂飞,等.基于光纤F-P腔的耐高温胶固化特性研究[J].光通信技术,2019,43(8):38-41.
【6】KARAMANOLEVSKI P,BUŽAROVSKA A,BOGOEVA-GACEVA G.The effect of curing agents on basic properties of silicone-epoxy hybrid resin[J].Silicon,2018,10(6):2915-2925.
【7】杨亚军,王召巴.丁羟衬层固化过程实时监测方法[J].固体火箭技术,2013,36(6):842-846.
【8】MITRA M,GOPALAKRISHNAN S.Guided wave based structural health monitoring:a review[J].Smart Materials and Structures,2016,25(5):053001.
【9】LEVITA G,LIVI A,ROLLA P A,et al.Dielectric monitoring of epoxy cure[J].Journal of Polymer Science Part B:Polymer Physics,1996,34(16):2731-2737.
【10】MITRA M,GOPALAKRISHNAN S.Guided wave based structural health monitoring:a review[J].Smart Materials and Structures,2016,25(5):053001.
【11】邱雷. 飞行器压电SHM与管理方法研究[D]. 南京:南京航空航天大学,2011.
【12】ZHOU K,XU X S,ZHAO Z,et al.Excitation of plane Lamb wave in plate-like structures under applied surface loading[J].Smart Materials and Structures,2018,27(2):025011.
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