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- W1985594354 abstract "Carbon foam showed good ballistic performances for relatively small fragment impacts: low density samples (0.56 g/cm and 0.24 g/cm) were able to stop and in some cases hold a 5 mm diameter stainless steel sphere shot at a speed up to 240 m/s by a compressed air gun. The results were used to calibrate and benchmark an Ls-Dyna model which had to be based only on a few and easy-to-measure material parameters. Therefore, performing only static compressive loading characterization tests, a suitable cellular Ls-Dyna material model was chosen. To justify the promising energy dissipation results, which cannot only be due to the static performances, a strain rate dependency was supposed. Based on ceramic materials which have inhomogeneities of the same size of the foam pores, a strain rate law typical of these was applied. Similar relations were applied to both the foams, and a calibrating coefficient was made on a single impact velocity test. The same model was then used to reproduce the impact at different impact velocities and very good agreement between experimental results and simulation was achieved." @default.
- W1985594354 created "2016-06-24" @default.
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- W1985594354 date "2009-05-20" @default.
- W1985594354 modified "2023-09-26" @default.
- W1985594354 title "Implementation and validation of a strain rate dependent model for carbon foam" @default.
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- W1985594354 doi "https://doi.org/10.2495/cmem090101" @default.
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