Numerical Modeling on Low Velocity Impact on a Foam Core Sandwich Panel
2014 ◽
Vol 527
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pp. 53-56
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This paper introduces a kinetic model to simulate a foam-core composite sandwich panel impacted by a solid semi-sphere. A modified Hashin failure criterion, which consider failure modes of fiber breakage, matrix cracking and matrix crushing, are implemented into the model analysis by using a self-developed VUMAT subroutine. Cohesive elements with zero-thickness are used in the composite laminates model and quadratic nominal stress criterion is used to predict the delamination initiation during the impact. A crushable foam model is used for foam core. The time history curve of contact force is obtained and shows a good correlation with the experimental data.
2012 ◽
Vol 430-432
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pp. 484-487
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2020 ◽
Vol 27
(1)
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pp. 245-257
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2018 ◽
Vol 52
(25)
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pp. 3491-3508
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2020 ◽
Vol 139
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pp. 103508
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2019 ◽
Vol 26
(1)
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pp. 517-530
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