Material fragmentation as dissipative process of micro rotation sequence formation: Hybrid model of excitable cellular automata

D. D. Moiseenko, V. E. Panin, P. V. Maksimov, S. V. Panin, F. Berto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

The authors have developed a multi-level model of energy propagation along interfaces between the various structural elements of a solid with taking into account mutual energy transformations of various kinds. They have also designed a computer simulation tool based on the excitable cellular automaton (ECA) method. An algorithm for calculating the local moments of forces has been developed for the case of material rotation and torsion. The relationship for the accumulated elastic energy is supplemented with a dissipation term. Numerical experiments have been carried out on high-energy impact on polycrystalline copper specimens with different grain sizes. The paper shows that during the nanostructuring of material surface layer, the dissipation of elastic energy gives rise to the rotation of structural elements. This makes it possible to prevent the occurrence of stress concentrators with peak values typical of coarse-grained specimens and reducing their mechanical properties.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
PublisherAmerican Institute of Physics Inc.
Pages427-430
Number of pages4
Volume1623
ISBN (Print)9780735412606
DOIs
Publication statusPublished - 2014
EventInternational Conference on Physical Mesomechanics of Multilevel Systems 2014 - Tomsk, Russian Federation
Duration: 3 Sep 20145 Sep 2014

Other

OtherInternational Conference on Physical Mesomechanics of Multilevel Systems 2014
CountryRussian Federation
CityTomsk
Period3.9.145.9.14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Moiseenko, D. D., Panin, V. E., Maksimov, P. V., Panin, S. V., & Berto, F. (2014). Material fragmentation as dissipative process of micro rotation sequence formation: Hybrid model of excitable cellular automata. In AIP Conference Proceedings (Vol. 1623, pp. 427-430). American Institute of Physics Inc.. https://doi.org/10.1063/1.4898973