A study on interlaminar behavior of carbon/epoxy laminated curved beams by use of acoustic emission

The interlaminar tensile strength of carbon/epoxy laminated curved beams with variable thickness and through-the-thickness tufted reinforcement is studied experimentally by means of a four-point-bending test in accordance with ASTM D6415. These tests are monitored by the acoustic emission (AE) techn...

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Bibliographic Details
Published inMechanics of advanced materials and structures Vol. 27; no. 18; pp. 1609 - 1618
Main Authors Ranz, David, Cuartero, Jesús, Castejón, Luis, Miralbes, Ramón
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 15.09.2020
Taylor & Francis Ltd
Subjects
acoustic emission
Acoustic emission testing
Carbon
Carbon-epoxy composites
Curved beams
Delamination
delamination onset
Emission analysis
Interlaminar tensile strength
laminated curved beam
Pollution monitoring
Quality assessment
Tensile strength
tufting
Variable thickness
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Summary:The interlaminar tensile strength of carbon/epoxy laminated curved beams with variable thickness and through-the-thickness tufted reinforcement is studied experimentally by means of a four-point-bending test in accordance with ASTM D6415. These tests are monitored by the acoustic emission (AE) technique in order to gain deeper knowledge of the delamination onset and post-failure behavior. The results show that AE technique has proven to perform well when identifying delamination onset and its evolution after failure. In addition to this, AE has demonstrated to be an appropriate tool to assess the manufacturing quality of the carbon/epoxy laminated curved-beam, once the right pattern has previously been established.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2018.1522559