Effect of notch shape on strain localization in steel under shock loading: Hybrid CA simulation

Abstract

A hybrid discrete-continuum Excitable Cellular Automata (ECA) approach is proposed to study the vector character of the mass and energy transfer flows in a solid under high-rate loading. Based on the torsion energy calculations, the model of generation and accumulation of defect structures is proposed. Numerical simulations of uniaxial shock loading of specimens with three typical notch shapes are performed to validate the proposed approach. It is shown that stress relaxation occurs most effectively when the modulation of various components of the force moment takes place at various scales. This offers the possibility to reduce the stress concentration substantially by tailoring the materials microstructure.

Original language	English
Title of host publication	Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016
Subtitle of host publication	Proceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures
Publisher	American Institute of Physics Inc.
Volume	1785
ISBN (Electronic)	9780735414471
DOIs	https://doi.org/10.1063/1.4967097
Publication status	Published - 18 Nov 2016
Event	10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016 - Ekaterinburg, Russian Federation Duration: 16 May 2016 → 20 May 2016

Conference

Conference	10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016
Country	Russian Federation
City	Ekaterinburg
Period	16.5.16 → 20.5.16

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4967097

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Moiseenko, D., Maksimov, P., Panin, S., & Panin, V. (2016). Effect of notch shape on strain localization in steel under shock loading: Hybrid CA simulation. In Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016: Proceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (Vol. 1785). [040040] American Institute of Physics Inc.. https://doi.org/10.1063/1.4967097

Effect of notch shape on strain localization in steel under shock loading : Hybrid CA simulation. / Moiseenko, Dmitry; Maksimov, Pavel; Panin, Sergey; Panin, Viktor.

Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016: Proceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. Vol. 1785 American Institute of Physics Inc., 2016. 040040.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Moiseenko, D, Maksimov, P, Panin, S & Panin, V 2016, Effect of notch shape on strain localization in steel under shock loading: Hybrid CA simulation. in Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016: Proceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. vol. 1785, 040040, American Institute of Physics Inc., 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016, Ekaterinburg, Russian Federation, 16.5.16. https://doi.org/10.1063/1.4967097

Moiseenko D, Maksimov P, Panin S, Panin V. Effect of notch shape on strain localization in steel under shock loading: Hybrid CA simulation. In Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016: Proceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. Vol. 1785. American Institute of Physics Inc. 2016. 040040 https://doi.org/10.1063/1.4967097

Moiseenko, Dmitry ; Maksimov, Pavel ; Panin, Sergey ; Panin, Viktor. / Effect of notch shape on strain localization in steel under shock loading : Hybrid CA simulation. Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016: Proceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. Vol. 1785 American Institute of Physics Inc., 2016.

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abstract = "A hybrid discrete-continuum Excitable Cellular Automata (ECA) approach is proposed to study the vector character of the mass and energy transfer flows in a solid under high-rate loading. Based on the torsion energy calculations, the model of generation and accumulation of defect structures is proposed. Numerical simulations of uniaxial shock loading of specimens with three typical notch shapes are performed to validate the proposed approach. It is shown that stress relaxation occurs most effectively when the modulation of various components of the force moment takes place at various scales. This offers the possibility to reduce the stress concentration substantially by tailoring the materials microstructure.",

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