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Nondestructive examination of polymethacrylimide composite structures with terahertz time-domain spectroscopy
被引:29
作者:
Xing, Liyun
[1
,2
]
Cui, Hong-Liang
[1
,3
]
Shi, Changcheng
[1
,3
]
Zhang, Ziyin
[1
]
Zhang, Jin
[1
]
Chang, Tianying
[1
,3
]
Wei, Dongshan
[3
]
Du, Chunlei
[3
]
Zhang, Songnian
[4
]
Zhou, Zhenxiong
[2
]
机构:
[1] Jilin Univ, Coll Instrumentat Sci & Elect Engn, Changchun 130061, Jilin, Peoples R China
[2] Beihua Univ, Jilin 130022, Jilin, Peoples R China
[3] Chinese Acad Sci, Chongqing Chongqing Inst Green & Intelligent Tech, Res Ctr THz Technol, Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China
[4] Jilin Chem Grp Co, Logist Ctr, Jilin 130022, Jilin, Peoples R China
来源:
基金:
中国国家自然科学基金;
中国科学院西部之光基金;
关键词:
PMI composite structure;
Adhesive debonding;
Inclusion;
Nondestructive evaluation;
Terahertz time-domain spectroscopy reflective imaging;
THERMAL BARRIER COATINGS;
TOMOGRAPHY;
INSPECTION;
D O I:
10.1016/j.polymertesting.2016.11.022
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
THz reflective time domain spectroscopy (THz-RIDS) has been considered as an effective method to detect hidden objects with potential for supplementing other NDE technologies for foam composite adhesive structure debonding defects. PMI (Polymethacrylimide) is a heat-resistant foam material, with the highest strength and stiffness to weight ratio. It is widely used in various parts of airplanes, especially the wing leading edge and rudder, landing gear doors, wing-body/wingtip fairings and so on. We analyzed the features of adhesive debonding defect based mainly on the variation of the time-domain wave form and compared with the inclusion defect. The quantification of degrees of adhesive debonding can be readily achieved with THz-RTDS images based on the delay of the wave front and the main reflection time-domain waveforms. Typical accuracy of about 100 pm was achieved. (C) 2016 Elsevier Ltd. All rights reserved.
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页码:141 / 148
页数:8
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