ANTOINAT, Léonard; KUBLER, Regis; BAROU, Jean-Luc; VIOT, Philippe; BARRALLIER, Laurent

doi:10.1016/j.ijimpeng.2014.07.017

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ANTOINAT, Léonard
Mechanics surfaces and materials processing [MSMP]

KUBLER, Regis
Mechanics surfaces and materials processing [MSMP]

BAROU, Jean-Luc

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International Journal of Impact Engineering. 2015-01, vol. 75, p. 255-267

Elsevier

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Low velocity perforation of aeronautical aluminium alloy sheets 2024 T3 is studied in this paper. After a literature review on recent experiments and models of plate’s perforation, experimental results for 2 thicknesses (2 mm and 4 mm) of plates are presented. Perforation tests are performed with an instrumented drop test. The striker has a large diameter and a conical shape nose. Two models for perforation are presented and calibrated to bring a better understanding of the experiments. The first one is an analytical model based on an energetic approach. The second one is a numerical shell Finite Element FE model. A Johnson Cook phenomenological behavior law of the plate’s material is implemented in the finite element code Abaqus/Explicit. The velocity, the evolution of the impact force, the absorbed energy and the cracks’ propagation are analysed.< Leer menos

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Perforation

Aluminum

Experiments

Impact

FE simulations

Analytical perforation model

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Perforation of aluminium alloy thin plates

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