Assessment of Impact Damage in Kevlar-Epoxy, Filament-Wound, Spherical Test Specimens by Acoustic Emission Techniques

摘要

The results of a study of the acoustic emission (AE) behavior of impact-damaged, spherical, composite test specimens subjected to thermal cycling and biaxial mechanical loading are presented. Seven Kevlar~R-epoxy, filament-wound, spherical composite test specimens were subjected to different Levels of impact damage. The seven specimens were a subset of a group of 77 specimens made with Simulated fabrication-induced flaws. The specimens were subjected to two or three cycles of elevated Temperature and then hydraulically pressurized to failure.