University of Hertfordshire

Low Velocity Impact Response of Composite Panels for Aeronautical Applications

Research output: Chapter in Book/Report/Conference proceedingConference contribution

  • Marzio Grasso
  • Francesco Penta
  • Giovanni Pio Pucillo
  • Fabrizio Ricci
  • Vincenzo Rosiello
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Original languageEnglish
Title of host publicationProceedings of The World Congress on Engineering 2015
EditorsS.I. Ao, Len Gelman, David W.L. Hukins, Andrew Hunter, A.M. Korsunsky
PublisherNewswood Limited
Pages1138-1143
Number of pages6
Volume2
ISBN (Print)978-988-14047-0-1
Publication statusPublished - 2015
EventWorld Congress on Engineering 2015 - London, United Kingdom
Duration: 1 Jul 20153 Jul 2015

Conference

ConferenceWorld Congress on Engineering 2015
CountryUnited Kingdom
CityLondon
Period1/07/153/07/15

Abstract

The present experimental work analyses the impact behaviour of thermosetting composite materials for aeronautic applications. The main goal of the experimental activity was to identify the energy level in correspondence of which penetration occurs. The initial values of the impact energy were estimated according to analytical correlations found in literature. Tests were performed on three types of composite panels: carbon fibre laminated panels, fibreglass laminated panels and hybrid panels. The technology of lamina is that of prepeg fabric with twill sequence and fibres weaving at 0°-90° and ± 45°. The fixture used for tests is a Charpy impact test machine, which was conveniently equipped to evaluate the angular variation and the acceleration of the impacting mass. Preliminarily, non-destructive ultrasonic controls were performed to check that the specimens were not damaged before impacts tests. The interesting results of the tests were identification of the energy absorbed and the impact force for each specimen. Moreover, for each energy and force level, it was possible to associate a different fracture state. Comparisons among the results obtained for specimens made up of just one type of reinforcement (glass or carbon) and the results obtained with hybrid specimens were performed.

ID: 9874601