Paper number 421
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LOW VELOCITY IMPACT DAMAGE IN GLARE(C) FIBRE METAL LAMINATES |
Jeremy F. Laliberté1, Cheung Poon2, and Paul V. Straznicky1
1Department of Mechanical and Aerospace Engineering, Carleton University
1125 Colonel By Drive, Ottawa, ON, K1S 5B6, Canada
2Institute for Aerospace Research, National Research Council of Canada
1500 Montreal Road, Bldg. M14, Ottawa, ON, K1A 0R6, Canada
| Summary | An investigation into the low velocity impact behaviour of GLARE(c) (GLAss REinforced) fibre metal laminates has been carried out. This study focused on the damage modes and mechanisms through which the panels absorb the energy of impact. Tests were conducted on several variants of GLARE(c) using an instrumented drop weight impact tower. As the level of impact energy increases the primary damage modes change and the relative amount of absorbed energy also changes. The damage modes are also strongly influenced by the specimen clamping conditions and by the fibre lay up of the panels. Having more fibres in one direction leads to a more predictable and gradual onset of panel penetration. |
Keywords | low velocity impact, fibre metal laminates, GLARE, delamination damage. |