Impact damage identification in composite laminates using vibration testing
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hdl:2117/20932
Tipus de documentArticle
Data publicació2014-02
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Abstract
Due to the problems arising from impact damage in composite laminates, there is a need to develop fast,
accurate, cost-effective and non-destructive testing methods to identify this type of damage at an early
stage and thus enhance the service life of composite structures. This paper presents the results of an
extensive experimental campaign conducted to investigate the feasibility of using vibration-based methods
to identify damages sustained by composite laminates due to low-velocity impacts. The experimental
programme included an evaluation of impact damage resistance and tolerance according to ASTM test
methods, characterisation of induced damage by ultrasonic testing and quantification of the effects on
the vibration response. The damage identification involved the detection, localisation, quantification
and estimation of the remaining bearing capacity. Four damage indicators based on modal parameters
were assessed by comparing pristine and damaged states. The results allowed for conclusions to be
drawn regarding the capability and suitability of each damage indicator, including its ability to detect
impact-induced damage, its precision in determining the location of damage, its sensitivity regarding
damage extent and pertinent correlations with residual bearing capacity.
CitacióPérez Martínez, M.A.; Gil, L.; Oller, S. Impact damage identification in composite laminates using vibration testing. "Composite structures", Febrer 2014, vol. 108, p. 267-276.
ISSN0263-8223
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S0263822313004728
Fitxers | Descripció | Mida | Format | Visualitza |
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1-s2.0-S0263822313004728-main.pdf | 2,227Mb | Accés restringit |