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Application of modal analysis for evaluation of the impact resistance of aerospace sandwich materials

Shahdin, Amir and Morlier, Joseph and Michon, Guilhem and Mezeix, Laurent and Bouvet, Christophe and Gourinat, Yves Application of modal analysis for evaluation of the impact resistance of aerospace sandwich materials. (2011) In: IMAC XXIX, A Conference and Exposition on Structural Dynamics : Advanced Aerospace Applications, 31 Jan - 03 Feb 2011, Jacksonville, USA .

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Official URL: http://dx.doi.org/10.1007/978-1-4419-9302-1_15

Abstract

Impact resistance of different types of composite sandwich beams is evaluated by studying vibration response changes (natural frequency and damping ratio). This experimental works will help aerospace structural engineer in assess structural integrity using classification of impact resistance of various composite sandwich beams (entangled carbon and glass fibers, honeycomb and foam cores). Low velocity impacts are done below the BVID limit in order to detect damage by vibration testing that is hardly visible on the surface. Experimental tests are done using both burst random and sine dwell testing in order to have a better confidence level on the extracted modal parameters. Results show that the entangled sandwich beams have a better resistance against impact as compared to classical core materials.

Item Type:Conference or Workshop Item (Lecture)
Additional Information:Published in Advanced Aerospace Applications, Volume 1 Conference Proceedings of the Society for Experimental Mechanics Series, 2011, Volume 4, 171-177, DOI: 10.1007/978-1-4419-9302-1_15
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Laboratory name:
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Deposited By: Joseph Morlier
Deposited On:14 Mar 2011 10:22

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