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Quantitative Acoustics Approach for Damage Detection in Hard Armor Protective Inserts
Conference proceeding

Quantitative Acoustics Approach for Damage Detection in Hard Armor Protective Inserts

Shane A Esola, Ivan Bartoli, Suzanne E Horner, James Q. Zheng and Antonios Kontsos
Proceedings of the American Society for Composites 30th Technical Conference, pp 2028-2039
01 Jan 2015
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Abstract

Engineering, Mechanical Materials Science, Composites Science & Technology Engineering Materials Science Technology
The tap-test has long been a benchmark in non-destructive inspection of material systems, including the investigation of delamination effects in composites. In this research, tap-test related impact force variations in the (human) audible acoustic range (up to 20 kHz) are associated with damaged and undamaged hard armor protective inserts using an experimental approach. Damaged and undamaged states are determined a priori by Army quality inspections and further investigated by x-ray computed tomography (XCT), which are used to validate the presented approach. Digital signal processing of impact-echo type acoustics data is conducted to determine metrics that may differentiate between the damaged and undamaged states while providing hardware/software solutions to robustly identify damage locations. Funding for this effort is provided by the U.S. Army Program Executive Office - Soldier.

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Web of Science research areas
Engineering, Mechanical
Materials Science, Composites
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