Numerical modeling of multi-scale shear stability loss in polycrystals under shock wave loading

Abstract

Presented in this paper is numerical modeling of polycrystalline aluminum behavior under the weak shock waves. Plastic deformation is considered as a process of shear stability loss on the different scale levels: micro, meso, and macro. A dislocation kinetics equation describes micro scale processes. For the meso scale deformation to be simulated we use two different models. One of them takes into account a generation of plastic shears on grain boundaries and the other allows us to describe `independent rotation' of mesofragments. On the macro level we calculate impact interaction the aluminum flyer plate with perfectly rigid wall. The results of 2D calculations are reported and discussed.

Original language	English
Title of host publication	Journal De Physique. IV : JP
Publisher	Editions de Physique
Pages	515-520
Number of pages	6
Volume	10
Edition	9
Publication status	Published - 2000
Externally published	Yes
Event	6th International Conference on Mechanical and Physical Behaviour of Materials Under Dynamic Loading - Krakow, Pol Duration: 25 Sep 2000 → 29 Sep 2000

Other

Other	6th International Conference on Mechanical and Physical Behaviour of Materials Under Dynamic Loading
City	Krakow, Pol
Period	25.9.00 → 29.9.00

ASJC Scopus subject areas

Physics and Astronomy(all)

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Balokhonov, RR, Makarov, PV, Romanova, VA, Smolin, IY & Savlevich, IV 2000, Numerical modeling of multi-scale shear stability loss in polycrystals under shock wave loading. in Journal De Physique. IV : JP. 9 edn, vol. 10, Editions de Physique, pp. 515-520, 6th International Conference on Mechanical and Physical Behaviour of Materials Under Dynamic Loading, Krakow, Pol, 25.9.00.

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abstract = "Presented in this paper is numerical modeling of polycrystalline aluminum behavior under the weak shock waves. Plastic deformation is considered as a process of shear stability loss on the different scale levels: micro, meso, and macro. A dislocation kinetics equation describes micro scale processes. For the meso scale deformation to be simulated we use two different models. One of them takes into account a generation of plastic shears on grain boundaries and the other allows us to describe `independent rotation' of mesofragments. On the macro level we calculate impact interaction the aluminum flyer plate with perfectly rigid wall. The results of 2D calculations are reported and discussed.",

author = "Ruslan Revovich Balokhonov and Makarov, {P. V.} and Romanova, {V. A.} and Smolin, {I. Yu} and Savlevich, {I. V.}",

year = "2000",

language = "English",

volume = "10",

pages = "515--520",

booktitle = "Journal De Physique. IV : JP",

publisher = "Editions de Physique",

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note = "6th International Conference on Mechanical and Physical Behaviour of Materials Under Dynamic Loading ; Conference date: 25-09-2000 Through 29-09-2000",

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T1 - Numerical modeling of multi-scale shear stability loss in polycrystals under shock wave loading

AU - Balokhonov, Ruslan Revovich

AU - Makarov, P. V.

AU - Romanova, V. A.

AU - Smolin, I. Yu

AU - Savlevich, I. V.

PY - 2000

Y1 - 2000

N2 - Presented in this paper is numerical modeling of polycrystalline aluminum behavior under the weak shock waves. Plastic deformation is considered as a process of shear stability loss on the different scale levels: micro, meso, and macro. A dislocation kinetics equation describes micro scale processes. For the meso scale deformation to be simulated we use two different models. One of them takes into account a generation of plastic shears on grain boundaries and the other allows us to describe `independent rotation' of mesofragments. On the macro level we calculate impact interaction the aluminum flyer plate with perfectly rigid wall. The results of 2D calculations are reported and discussed.

AB - Presented in this paper is numerical modeling of polycrystalline aluminum behavior under the weak shock waves. Plastic deformation is considered as a process of shear stability loss on the different scale levels: micro, meso, and macro. A dislocation kinetics equation describes micro scale processes. For the meso scale deformation to be simulated we use two different models. One of them takes into account a generation of plastic shears on grain boundaries and the other allows us to describe `independent rotation' of mesofragments. On the macro level we calculate impact interaction the aluminum flyer plate with perfectly rigid wall. The results of 2D calculations are reported and discussed.

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