Numerical and Experimental Study of Strain Localization in Notched Specimens of a Ductile Steel on Meso- and Macroscales

Sergey Panin, Alexey Vinogradov, Dmitry Moiseenko, Pavel Maksimov, Filippo Berto, Anton Byakov, Alexandr Eremin, Natalia Narkevich

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The computational approach for modeling the deformation behavior and fracture of materials with stress concentrators is proposed on the basis of the cellular automata technique. Numerical simulations performed on miniaturized specimens under dynamic loading are accompanied by laboratory tensile testing under quasi-static conditions applied to the specimens of a ductile structural steel with three typical notch shapes. Using in situ acoustic emission paired with digital image correlation techniques, it is shown that the notch shape exerts a very strong influence on the development of localized plastic flow and crack initiation ahead of the notch tip. It is concluded that the stress release occurs most effectively when the modulation of various components of the force moment takes place on mesoscopic scale.

Original languageEnglish
Pages (from-to)2095-2106
Number of pages12
JournalAdvanced Engineering Materials
Volume18
Issue number12
DOIs
Publication statusAccepted/In press - 2016

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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    Panin, S., Vinogradov, A., Moiseenko, D., Maksimov, P., Berto, F., Byakov, A., Eremin, A., & Narkevich, N. (Accepted/In press). Numerical and Experimental Study of Strain Localization in Notched Specimens of a Ductile Steel on Meso- and Macroscales. Advanced Engineering Materials, 18(12), 2095-2106. https://doi.org/10.1002/adem.201600206