光学学报, 2013, 33 (6): 0612002, 网络出版: 2013-05-31  

蜂窝缺陷的红外无损检测及有限元模拟

Thermal Wave Nondestructive Testing of Honeycomb Defects and Finite Element Modeling
作者单位
北京市太赫兹波谱与成像重点实验室,太赫兹光电子学教育部重点实验室,首都师范大学物理系,北京 100048
摘要
蜂窝结构在使用过程中,常见的缺陷有脱粘和积水。红外无损检测技术通过对试件主动加热,利用热像仪采集试件表面的红外辐射变化,从而检测出物体的缺陷信息。实验结果表明,蜂窝积水位置的温度要低于参考区域的温度。基于这一现象,利用Ansys有限元软件模拟了蜂窝结构的脉冲红外热成像检测过程,并与实际脉冲红外热成像用于表面下识别检测实验结果进行对比,验证了模拟结果的正确性。对蜂窝结构的积水、脱粘和积油缺陷模拟并进行对比识别,为实际实验提供理论基础。
Abstract
The main defects of honeycomb structure in use are debond and water. Thermal wave nondestructive testing technology uses the pulse to heat the sample and thermal camera to detect the surface temperature so as to detect the defects of object information. The experimental results show that the temperature of the water position is lower than the temperature of the reference area. Based on this phenomenon, the Ansys finite element software is used to simulate the pulsed thermography, and the simulation results are compared with the actual test results, which verify that the finite element method is feasible to infrared non-destructive testing. The simulation and identification of the debond, water and oil defects are made to provide theoretical foundation for the actual experiment.
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黄新萍, 陶宁, 蒋玉龙, 王中华, 张存林. 蜂窝缺陷的红外无损检测及有限元模拟[J]. 光学学报, 2013, 33(6): 0612002. Huang Xinping, Tao Ning, Jiang Yulong, Wang Zhonghua, Zhang Cunlin. Thermal Wave Nondestructive Testing of Honeycomb Defects and Finite Element Modeling[J]. Acta Optica Sinica, 2013, 33(6): 0612002.

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