基于脉冲红外热成像的缺陷深度定量测量技术研究  

Research on Quantitative Measurement of Defect Depths Using Pulsed Thermography

作　　者：张凯[1] 刘永清[1] 王则力[1] 巨亚堂[1] 宋俊柏 ZHANG Kai;LIU Yong-qing;WANG Ze-li;JU Ya-tang;SONG Jun-bai(Beijing Institute of Structure and Environment Engineering,Beijing 100076,China;Science and Technology on Reliability and Environmental Engineering Laboratory,Beijing Institute of Structure and Environment Engineering,Beijing 100076,China)

机构地区：[1]北京强度环境研究所,北京100076 [2]北京强度环境研究所可靠性与环境工程技术重点实验室,北京100076

出　　处：《强度与环境》2023年第2期60-64,共5页Structure & Environment Engineering

基　　金：重点实验室基金(6142004210202)新型防热瓦结构撞击环境效应与损伤评估方法。

摘　　要：缺陷深度定量测量是脉冲红外热波无损检测技术的重要应用,本文深入研究了脉冲红外热波成像无损检测的数据处理方法。基于预制的复合材料缺陷试件,对脉冲红外热波成像无损检测过程进行了数值模拟和实验,计算了缺陷深度。结果表明:数值模拟和实验获得的缺陷深度结果与预制试件的缺陷深度之间有较好的包络关系,使用脉冲红外热成像进行缺陷深度定量分析的实验技术具备工程应用价值。Quantitative measurement of defect depth is an important application of pulse infrared thermal wave nondestructive testing technology.In this paper,processing methods for pulsed thermograph nondestructive testing have been deeply studied.Numerical simulation and experiment for the process of pulsed infrared nondestructive testing have been done on defect samples made of composite material.and the depths of defects have been calculated.The results indicate that,there are good envelop features between the depths of defects calculated through numerical simulations and the actual depths of defects,and also between the depths of defects calculated through experiments and the actual depths of defects.Experimental technology of defect depth quantities analysis using pulsed thermograph has the engineering application value.

关 键 词：脉冲红外无损检测 缺陷深度 定量测量 数值模拟 

分 类 号：V416.8[航空宇航科学与技术—航空宇航推进理论与工程]