Avalanche dynamics in crumpled aluminum thin foils

Abstract : Uniaxial compression of crumpled aluminum thin foils with different relative densities was studied using an acoustic emission (AE) technique. The AE signal analysis reveals a power law linking the probable density and amplitudes of acoustic events, proving an avalanche dynamics of plastic deformation. The exponent found for the distributions of squared amplitudes that reflect the dissipated mechanical energy places the observed behavior among those found previously for bulk samples of various pure materials.
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Scripta Materialia, Elsevier, 2015, 99, pp.17-20. 〈10.1016/j.scriptamat.2014.11.016〉
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https://hal.univ-lorraine.fr/hal-01513858
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Soumis le : mardi 25 avril 2017 - 15:04:35
Dernière modification le : jeudi 11 janvier 2018 - 06:23:43

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Maher Abobaker, Olivier Bouaziz, Mikhail Lebyodkin, Tatiana Lebedkina, I. V. Shashkov. Avalanche dynamics in crumpled aluminum thin foils. Scripta Materialia, Elsevier, 2015, 99, pp.17-20. 〈10.1016/j.scriptamat.2014.11.016〉. 〈hal-01513858〉

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