Investigations on Dynamic Energy Absorption Behavior of Metal Foam

Geng Luo; Pu Xue

doi:10.4028/www.scientific.net/KEM.715.192

Paper Titles

DEM/FEM Simulations of Dynamic Response of Projectile Penetrating into Granular Medium
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Improved Model for Impact of Viscoplastic Bodies
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Interior Head Impact Analysis of Automotive Instrument Panel for Unrestrained Front Seat Passengers
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Investigations on Dynamic Energy Absorption Behavior of Metal Foam
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Numerical Simulation of Behavior of Sand Particles during High-Speed Penetration with Particle Method
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The Resistance of Structural Elements to Impact and Shock-Wave Load
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 715Investigations on Dynamic Energy Absorption...

Investigations on Dynamic Energy Absorption Behavior of Metal Foam

Abstract:

In this study, the dynamic energy absorption behavior of metal foam is investigated. A 3D Voronoi numerical model is established. Uniaxial compression under quasi-static and impact with velocities in the range of 10m/s to 200m/s are implemented, respectively, to investigate the energy behavior. During the impact process, the impact energy is transferred into kinetic energy and the internal energy. The kinetic energy varies with fluctuation due to the propagation and reflection of plastic shock wave. When the plastic shock wave arrives at the impact side or support side, the rate of internal energy absorption increases, and the kinetic energy possesses a local maximum/minimum value. The dynamic internal energy is obvious higher than quasi-static internal energy, due to the region behind the wave front is compacted tightly resulted from the plastic shock wave.

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Periodical:

Key Engineering Materials (Volume 715)

Pages:

192-197

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.715.192

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Online since:

September 2016

Authors:

Geng Luo, Pu Xue*

Keywords:

Energy Absorption, Metal Foam, Plastic Shock Wave, Voronoi Model

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