AI Article Synopsis
- The paper explores a non-destructive evaluation (NDE) method designed to detect damage in composite aircraft structures caused by high-energy blunt impacts from ground service equipment.
- It focuses on specific structural components, such as skin and co-cured stringers, using ultrasonic guided waves and a line scan technique for inspection.
- Test prototypes (both contact and non-contact) were developed and proven effective, demonstrating high probabilities of defect detection with minimal false alarms in laboratory experiments.
Article Abstract
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.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5553524 | PMC |
| http://dx.doi.org/10.3390/ma10060616 | DOI Listing |
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