The aim for delamination tests is to obtain reliable results, simulating in-situ cracking and giving a fracture toughness value that can consistently characterize materials for structural applications. Standardized organizations developed and adopted similar standards to carry out tests by using proper load fixture possibly combined with optical instruments, to allow the real monitoring of delamination growth for the whole duration tests. In this work, the fracture behavior of unidirectional composites is experimentally analyzed by using acoustic emissions technique too. Sensor was placed on the sample to monitor the evolution of the acoustical events during the tests. Data obtained, in terms of energy, number of hits and hits derivative were critically analyzed to assess the capability of the technique in following the evolution of the damage process and giving information about the toughness values compared with the standardized calculation methods
Fracture Behavior Of Unidirectional Composites Analyzed By Acoustic Emissions Technique / Barile, Claudia; Casavola, Caterina. - STAMPA. - (2018), pp. 121-127. (Intervento presentato al convegno Annual Conference and Exposition on Experimental and Applied Mechanics, 2017 tenutosi a Indianapolis, IN nel June 12-15, 2017) [10.1007/978-3-319-62831-8_17].
Fracture Behavior Of Unidirectional Composites Analyzed By Acoustic Emissions Technique
Barile, Claudia
;Casavola, Caterina
2018-01-01
Abstract
The aim for delamination tests is to obtain reliable results, simulating in-situ cracking and giving a fracture toughness value that can consistently characterize materials for structural applications. Standardized organizations developed and adopted similar standards to carry out tests by using proper load fixture possibly combined with optical instruments, to allow the real monitoring of delamination growth for the whole duration tests. In this work, the fracture behavior of unidirectional composites is experimentally analyzed by using acoustic emissions technique too. Sensor was placed on the sample to monitor the evolution of the acoustical events during the tests. Data obtained, in terms of energy, number of hits and hits derivative were critically analyzed to assess the capability of the technique in following the evolution of the damage process and giving information about the toughness values compared with the standardized calculation methodsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
