CFRP薄壁管红外热成像和CT检测的研究分析  

Research and analysis of infrared thermography and CT detection of thin-walled CFRP tube

作　　者：郭德伟[1] 马其华[1] GUO Dewei;MA Qihua(Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学,上海201620

出　　处：《智能计算机与应用》2020年第3期294-298,共5页Intelligent Computer and Applications

摘　　要：碳纤维复合材料(CFRP)具有高强度、高刚度及耐高温等优异特性,其在航空、航天、车辆等领域应用得非常广泛。复合材料结构件因复杂的结构导致其在生产和使用过程中会产生如分层、脱粘和裂纹等各类缺陷,使得复合材料的性能降低,具有安全隐患。研究和发展能够准确检测碳纤维复合材料的损伤十分有意义。本文分析了主流的无损检测技术方法的检测原理及特点,对比了不同的形状及不同损伤所适用的检测原理。本文利用红外热成像的方法建立实验装置,得到实验结果,得出预制的CFRP薄壁管样件表面损伤面积为1 342 mm^2。并且利用CT技术对样件的损伤做检测分析。并对红外的检测方法进行了对照。Carbon fiber reinforced polymer(CFRP)is widely used in aerospace,vehicle and other fields because of its high strength,high stiffness and high temperature resistance.Due to the complex structure of composite structure,it will produce various defects such as delamination,debonding and cracks in the process of production and use,which will reduce the performance of composite materials and have security risks.It is of great significance to study and develop the method to accurately detect the damage of carbon fiber composite.This paper analyzes the testing principle and characteristics of the mainstream nondestructive testing technology,and compares the testing principles of different shapes and different damages.In this research,the infrared thermal imaging method is used to set up the experimental device.The experimental results show that the surface damage area of the prefabricated thin-walled CFRP tube sample is 1342 mm2.In addition,CT technology is used to detect and analyze the damage of the sample compared with the results of infrared detection method.

关 键 词：复合材料 薄壁管 损伤检测 损伤评价 CT 红外热成像 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]