Damage and failure of unidirectional laminate by acoustic emission combined with video recording

• Published in: Acta mechanica Vol. 232; no. 5; pp. 1889 - 1900
• Main Authors: Matvienko, Yu. G., Vasil’ev, I. E., Chernov, D. V.
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.05.2021; Springer; Springer Nature B.V
• Subjects: Acoustic emission; Acoustic emission testing; Classical and Continuum Physics; Cluster analysis; Control; Damage; Dynamical Systems; Energy levels; Engineering; Engineering Fluid Dynamics; Engineering Thermodynamics; Failure analysis; Heat and Mass Transfer; Laminated materials; Original Paper; Parameters; Solid Mechanics; Theoretical and Applied Mechanics; Vibration
• ISSN: 0001-5970; 1619-6937
• DOI: 10.1007/s00707-020-02866-6

Research results of damage and failure of unidirectional laminate packages under tension are presented. A study of the kinetics of damage and failure of the laminate structure is carried out by means of acoustic emission (AE) and synchronous video recording. The conformity between failure proceses occurring on the microscopic, mesoscopic and macroscopic scale levels and the recorded AE events including their energy parameters, shape and spectrum is established. The structural–phenomenological approach implemented by dividing the AE data array into energy clusters allows analyzing the degree of damage and failure of the material employing new criteria parameters, namely the registration activity and the weight content of the location AE events in the clusters of the lower, middle and upper energy levels.