Fracture Characteristics of Boron Fiber-Reinforced Aluminum 2024as Detected by Acoustic Emission.

摘要

Results of experimental studies using acoustic emission techniques with aluminum 2024and with boron fiber-reinforced aluminum 2024are discussed. Since the stress-strain relationship for the composite before fracture was also recorded,it was possible to detect that region (strain) where significant fiber fracture began for a particular composite specimen. Emphasis was on the study of the characteristics of fiber fracture rather than on determining the ultimate strength of the composite. (Author)