Study of the deformation of a sandwich shield subjected to bird impact: A behaviour analysis tool using vector decomposition

Abstract : In this work, a numerical finite element model of a 1.82 kg bird impacting a sandwich shield at 175 m/s is developed. Different shield designs are simulated and it appears that very different sandwich behaviours can occur, depending on the design. A new tool to analyse the deformation of the sandwich during impact is presented and is used to study the behaviour of a shield. As this tool makes it possible to easily compare the behaviour of different shields, it is used in a screening study to identify the more influential sandwich design parameters. If all design parameters are considered to be independent, the core out-of-plane plastic plateaus appear to be the most important. The core in-plane properties, elastic modulus and density and the back skin thickness have much less influence on the sandwich deformation under impact.
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https://hal.archives-ouvertes.fr/hal-01950757
Contributor : Pierre Naegelen <>
Submitted on : Tuesday, December 11, 2018 - 9:15:16 AM
Last modification on : Tuesday, October 22, 2019 - 5:20:44 PM

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  • HAL Id : hal-01950757, version 1

Citation

Arnaud Wilhelm, Samuel Rivallant, Jean-François Ferrero. Study of the deformation of a sandwich shield subjected to bird impact: A behaviour analysis tool using vector decomposition. Journal of Sandwich Structures & Materials, 2017, pp.1099636217697499. ⟨hal-01950757⟩

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