JIANG Nian1， WANG Zhao-ba 2
（1. Huazhong Institute of Electro-Optics， Wuhan National Laboratory for Optoelectronics， Wuhan 430223， China；2. School of Information and Communication Engineering， North University of China， Taiyuan 030051， China）
Abstract： The relationship between ultrasonic nonlinearity and microstructure of the liner was studied during the whole curing process by ultrasonic transmission method and infrared spectroscopy. Nonlinearity of input instrumentation was minimized by the natural filtering effect of piezoelectric discs and the maximum excitation energy was acquired simultaneously so as to improve the accuracy of the measuring data. The experimental results indicate that in the liner curing reaction at 40 ℃ ultrasonic nonlinearity parameter decreases gradually after a sharp decline, which is consistent with the outcome of infrared spectroscopy as the curing degree increases. The research suggests an effective nondestructive approach to detect the curing properties of the liner in a nonlinear ultrasonic way．
Key words： liner; curing properties; nonlinear ultrasound; nondestructive detection
CLD number： V435； O221.3 Document code： A
Article ID： 1674-8042（2018）04-0321-05 doi： 10.3969/j.issn.1674-8042.2018.04.003
References
［1］ Fan S, Wang Z B, Jin Y, et al. Design of automatic ultrasonic detection system for insulating layer debonding flaws of SRM. Journal of Astronautics, 2010, 31(6): 1646-1650.
［2］ Vijaya K, Murthy C L. Some studies on evaluation of degradation in composite adhesive joints using ultrasonic techniques. Ultrasonics, 2013, 53(6): 1150-1162.
［3］ Shui G S, Wang Y S. A method nonlinear ultrasonic evaluation of coating damage on metallic material. Journal of Solid Rocket Technology, 2012, 35(5): 703-706.
［4］ Wu B, Yan B S, He C F. Nonlinear ultrasonic characterizing online fatigue damage and in situ microscopic observation. Transactions of Nonferrous Metals Society of China, 2011, 21(12): 2597-2604.
［5］ Jiang N, Wang Z B, Jin Y, et al. Measurement of interface bond quality of composite structure using nonlinear ultrasound. Acta Armamentarh, 2014, 35(3): 398-402.
［6］ Yan D W, Simon A N, Bruce W. Modeling and measurement of the nonlinear behavior of kissing bonds in adhesive joints. NDT & E International, 2012， 47(4): 18-25.
［7］ Hong M, Su Z H, Wang Q, et al. Modeling nonlinearities of ultrasonic waves for fatigue damage characterization: theory, simulation, and experimental validation. Ultrasonics, 2014, 54(3): 770-778.
［8］ Liu S M, Steven B, Simon A N, et al. Measuring bulk material nonlinearity using harmonic generation. NDT & E International, 2012, 48(2): 46-53.
［9］ Hirsekorn S. Nonlinear transfer of ultrasound by adhesive joints-a theoretical description. Ultrasonics, 2001, 39(1): 57-68
［10］ Hurley D C, Fortunko C M. Determination of the nonlinear ultrasonic parameter using a Michelson interferometer. Measurement Science and Technology, 1997, 8(6): 634-642.
［11］ Zhou Z G, Liu S M. Nonlinear ultrasonic techniques used on nondestructive testing: a review. Journal of Mechanical Engineering, 2011, 47(8): 2-11.
［12］ Yang S S, Pan Q, Pi W F, et al. Effect of the curing state of the liner on the adhesion properties of the liner and propellant. Chinese Journal of Explosives & Propellants, 2010, 33(3): 88-90.
衬层固化性能的非线性超声检测
江 念1， 王召巴2
（1. 华中光电技术研究所 武汉光电国家研究中心， 湖北 武汉 430223； 2. 中北大学 信息与通信工程学院， 山西 太原 030051）
摘 要: 基于超声纵波透射法， 结合衬层样本的红外光谱图， 研究了衬层固化过程中其微观组织结构与超声非线性系数间的关系。 利用铌酸锂晶片的滤波特性， 在获得最大激励能量的同时有效减少了前端仪器引入的非线性， 提高了测量数据的准确性。 检测结果表明， 在40 ℃固化温度下， 随固化度增加， 超声非线性系数先急剧下降而后逐渐减小， 与红外光谱技术检测结果一致。 因此， 利用超声非线性系数可以对衬层的固化性能进行超声无损检测。
关键词: 衬层； 固化性能； 非线性超声； 无损检测
引用格式： JIANG Nian， WANG Zhao-ba. Nonlinear ultrasonic detection for curing properties of the liner. Journal of Measurement Science and Instrumentation, 2018, 9(4)： 321-325. ［doi： 10.3969／j.issn.1674-8042.2018.04.003］
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