Deformation and Failure Information from Composite Materials Via Acoustic Emission

摘要

Some principles of applying acoustic emission (AE) to the study of fiber-composite materials and structures are reviewed. The review covers the basics of using AE to monitor the deformation and fracture processes that occur when fiber-composite materials are stressed. Also, new results in some areas of current research interest are presented. The following areas are emphasized: study of couplants for AE testing of composites, evaluation of a special immersion-type AE transducer, and wave propagation complications and the development of techniques for locating AE sources in Kevlar 49/epoxy composite pressure vessels. (ERA citation 04:024299)