Journal
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
Volume 21, Issue 6, Pages 2127-2153Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1099636217740389
Keywords
Three-dimensional fiber metal laminates fiber metal laminates; low velocity impact response; finite element simulation; impact strength
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Funding
- National Science and Engineering Research Council of Canada (NSERC)
- Killam scholarship
- Amelia Earhart fellowship
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The main objective of the present study is to examine the level of enhancement in performance of three-dimensional fiber metal laminates (3DFML) under low velocity impact, when reinforced by different types of reinforcing face-sheets (i.e. fiberglass or carbon). Three layup configurations of the fabrics are considered in this investigation. The impact response of each of these configurations is assessed numerically using ABAQUS/Explicit, a commercially available finite element software. Specifically, each configuration's impact capacity, deformation, contact time, and energy absorption capacity are evaluated. The numerical results are validated by comparison against experimental results. Moreover, a semi-empirical equation is developed for evaluating the impact capacity of such panels, as a function of impact energy, capable of accounting the influence of any type of reinforcement. Finally, the most efficient reinforced three-dimensional fiber metal laminates are identified based on their impact strength with respect to their overall weight and cost.
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