Non-Destructive Inspection of Impact Damage in Composite Aircraft Panels by Ultrasonic Guided Waves and Statistical Processing

被引:30
|
作者
Capriotti, Margherita [1 ]
Kim, Hyungsuk E. [2 ]
di Scalea, Francesco Lanza [1 ]
Kim, Hyonny [2 ]
机构
[1] Univ Calif San Diego, NDE&SHM Lab, 9500 Gilman Dr, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Adv Composites & Aerosp Struct Lab, 9500 Gilman Dr, La Jolla, CA 92093 USA
来源
MATERIALS | 2017年 / 10卷 / 06期
关键词
aerospace structures; ultrasonic guided waves; impact detection; NDE; OUTLIER ANALYSIS; LAMB WAVES; DEFECTS;
D O I
10.3390/ma10060616
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This paper discusses a non-destructive evaluation (NDE) technique for the detection of damage in composite aircraft structures following high energy wide area blunt impact (HEWABI) from ground service equipment (GSE), such as heavy cargo loaders and other heavy equipment. The test structures typically include skin, co-cured stringers, and C-frames that are bolt-connected onto the skin with shear ties. The inspection exploits the waveguide geometry of these structures by utilizing ultrasonic guided waves and a line scan approach. Both a contact prototype and a non-contact prototype were developed and tested on realistic test panels subjected to impact in the laboratory. The results are presented in terms of receiver operating characteristic curves that show excellent probability of detection with low false alarm rates for defects located in the panel skin and stringers.
引用
收藏
页数:12
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