Acoustic Emission and Durability of Composite Materials
About this ebook
In the first, individual, analysis, acoustic signature of each damage mechanism is characterized. So with a clustering method, AE signals that have similar shapes or similar features can be group together into a cluster. Afterwards, each cluster can be linked with a main damage. The second analysis is based on a global AE analysis, on the investigation of liberated energy, with a view to identify a critical point. So beyond this characteristic point, the criticality can be modeled with a power-law in order to evaluate time to failure.
About the author
Nathalie Godin has been a senior lecturer at the National Institute of Applied Sciences (INSA, in MATEIS laboratory) in Lyon, France since 1996. She has more than 20 years of experience in the field of acoustic emission and the study of mechanisms of damage of composite materials.
Pascal Reynaud has been a Research Fellow at the CNRS (INSA, in the MATEIS laboratory) in France since 1992. His research activities mainly concern the behavior and damage of ceramic matrix composites.
Gilbert Fantozzi has been Professor Emeritus at the National Institute of Applied Sciences (INSA, in the MATEIS laboratory) of Lyon, France since 2007. He is a specialist in the field of the elaboration of ceramic materials, the thermomechanical behavior of ceramics and the microstructure–properties relationships of ceramics.
