An Experimental Study on Elastic Wave Propagation in a Filament-Wound Composite Motor Case for Acoustic Emission during Hydroproof Testing

摘要

Recently, acoustic emission during hydroproof (AE/H) testing has been adopted for the quality assurance of filament-wound composite rocket motor (FCRM) cases. For the proper performance of this testing, it is crucial to understand the characteris- Tics of elastic wave propagation in the FCRM case, since AE signals captured in this Testing can vary significantly according to various factors including its geometry and Material properties.