基于THz波的玻璃纤维复合材料无损检测方法研究

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (9): 35-38.

基于THz波的玻璃纤维复合材料无损检测方法研究

廖晓玲, 刘延雷^*, 汪宏, 李伟忠

杭州市特种设备检测研究院,杭州 310051

收稿日期:2015-04-28 出版日期:2015-09-28 发布日期:2021-09-14
通讯作者: 刘延雷(1980-),男,博士,高级工程师,主要从事复合材料无损检测研究。
作者简介:廖晓玲(1990-),女,硕士,助理工程师,主要从事特种设备用复合材料无损检测研究。
基金资助:
浙江省质监系统科研计划项目(20150236);国家质检总局科技计划项目(2014QK158);浙江省科技厅科技创新团队项目(2010R50001-21)

NON-DESTRUCTIVE INSPECTION METHOD FOR GLASS FIBER COMPOSITE BASED ON THz WAVE

LIAO Xiao-ling, LIU Yan-lei^*, WANG Hong, LI Wei-zhong

Hangzhou Special Equipment Inspection and Reaerch Institute, Hangzhou 310051, China

Received:2015-04-28 Online:2015-09-28 Published:2021-09-14

摘要/Abstract

摘要： 太赫兹具有透视性、安全性等特点,近年来在无损检测领域得到了较快的发展和应用,以返波振荡管连续太赫兹波成像系统对5mm厚的玻璃纤维复合材料进行无损检测实验,其中包括热损伤(dmin=0.5mm)、空气分层(s_min=0.5mm²)等缺陷,获得样品的成像结果及数据。结果表明,返波振荡管连续太赫兹波成像技术对从背面对玻璃纤维复合材料样品中的两种缺陷有清晰成像,且结合成像数据,可排除样品中环氧树脂的影响,验证不同缺陷之间的特性,进一步确定损伤类型。

关键词: 太赫兹波, 返波振荡管, 玻璃纤维复合材料, 无损检测

Abstract: There has been a series of significant advances and applications in terahertz (THz) technologies, terahertz (THz) wave with its perspectivity and safety was widely applied in the field of nondestructive testing. The unique properties help them become effective tools for non-destructive detection. With the increased utilization, the backward wave oscillator terahertz continuous wave imaging system was used to perform non-destructive testing of glass fiber composite material whose thickness is 5mm. Imaging and data of the sample within heat damage (d_min=0.5mm), air delamination (s_min=0.5mm²) was obtained. The results show that heat damage and delamination of glass fiber reinforced plastic (GFRP) reference sample was detected from the back side. Additionally, glass fiber reinforced plastic (GFRP) samples were evaluated with respect to the measurement of material properties, the attenuation caused by epoxy was proved to be insignificant, and the particular features of the defects in sample are recognized, benefiting to identify the defects.

Key words: terahertz wave, backward wave oscillator, glass fiber composite, non-destructive inspection

中图分类号:

TB332

廖晓玲, 刘延雷, 汪宏, 李伟忠. 基于THz波的玻璃纤维复合材料无损检测方法研究[J]. 复合材料科学与工程, 2015, 0(9): 35-38.

LIAO Xiao-ling, LIU Yan-lei, WANG Hong, LI Wei-zhong. NON-DESTRUCTIVE INSPECTION METHOD FOR GLASS FIBER COMPOSITE BASED ON THz WAVE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(9): 35-38.

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