Numéro |
J. Phys. IV France
Volume 10, Numéro PR9, September 2000
EURODYMAT 2000 - 6th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
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Page(s) | Pr9-515 - Pr9-520 | |
DOI | https://doi.org/10.1051/jp4:2000986 |
EURODYMAT 2000 - 6th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
J. Phys. IV France 10 (2000) Pr9-515-Pr9-520
DOI: 10.1051/jp4:2000986
Institute of Strength Physics and Materials Science, SB, RAS, Pr. Academicheskii 2/1, Tomsk 634021, Russia
© EDP Sciences 2000
J. Phys. IV France 10 (2000) Pr9-515-Pr9-520
DOI: 10.1051/jp4:2000986
Numerical modeling of multi-scale shear stability loss in polycrystals under shock wave loading
R.R. Balokhonov, P.V. Makarov, V.A. Romanova, I.Yu. Smolin and I.V. SavlevichInstitute of Strength Physics and Materials Science, SB, RAS, Pr. Academicheskii 2/1, Tomsk 634021, Russia
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.
© EDP Sciences 2000