Influence of energy dissipation at the interphase boundaries on impact fracture behaviour of a plain carbon steel

S. V. Panin, D. D. Moiseenko, P. V. Maksimov, I. V. Vlasov, A. V. Byakov, P. O. Maruschak, F. Berto, S. Schmauder, A. Vinogradov

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The paper deals with the impact deformation and fracture behaviour of commercial plain carbon pipe steel 17Mn1Si. The explicit account of the internal grain structure, temperature and geometry of the notch have been made in theoretical physical mesomechanics formulation aiming at in depth understanding of the role of strain energy factors in dynamic fracture. Theoretical method of excitable cellular automata and laboratory impact bending tests followed by fractographic analysis were paired with time–frequency analysis of acoustic emission accompanying local deformation and fracture processes. It was shown that formulation of the crack opening criterion under dynamic loading conditions should explicitly account for rotation energy accumulation and incorporate the microscopic temporal and spatial details of defect generation from internal (grain) boundaries. A fairly good agreement has been found between the strain energy characteristics obtained from mechanical loading data and independently measured acoustic emission signal being distinguished in terms of consumed and released energy. The impact toughness almost linearly decreased with temperature, which was consistent with fractographic observations. At the stage of crack initiation, when the energy dissipation processes at the internal structure elements significantly affect the initiation of dynamic fracture, the acoustic emission energy reduced in proportion to the expended mechanical energy, which considerably decreased with temperature. The vital role of the energy release at interface/grain boundaries and its decreased significance with decreasing temperature was demonstrated both in numeric simulations and in dynamic experiments.

Original languageEnglish
Pages (from-to)478-499
Number of pages22
JournalTheoretical and Applied Fracture Mechanics
Volume97
DOIs
Publication statusPublished - 1 Oct 2018

Fingerprint

carbon steels
Energy Dissipation
plains
Carbon steel
Steel
Energy dissipation
Carbon
Acoustic emissions
energy dissipation
Acoustic Emission
Internal
Dynamic Fracture
Strain energy
Energy
acoustic emission
Strain Energy
Temperature
energy
Bending tests
Cellular automata

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Applied Mathematics

Cite this

Influence of energy dissipation at the interphase boundaries on impact fracture behaviour of a plain carbon steel. / Panin, S. V.; Moiseenko, D. D.; Maksimov, P. V.; Vlasov, I. V.; Byakov, A. V.; Maruschak, P. O.; Berto, F.; Schmauder, S.; Vinogradov, A.

In: Theoretical and Applied Fracture Mechanics, Vol. 97, 01.10.2018, p. 478-499.

Research output: Contribution to journalArticle

Panin, SV, Moiseenko, DD, Maksimov, PV, Vlasov, IV, Byakov, AV, Maruschak, PO, Berto, F, Schmauder, S & Vinogradov, A 2018, 'Influence of energy dissipation at the interphase boundaries on impact fracture behaviour of a plain carbon steel', Theoretical and Applied Fracture Mechanics, vol. 97, pp. 478-499. https://doi.org/10.1016/j.tafmec.2017.09.010
Panin, S. V. ; Moiseenko, D. D. ; Maksimov, P. V. ; Vlasov, I. V. ; Byakov, A. V. ; Maruschak, P. O. ; Berto, F. ; Schmauder, S. ; Vinogradov, A. / Influence of energy dissipation at the interphase boundaries on impact fracture behaviour of a plain carbon steel. In: Theoretical and Applied Fracture Mechanics. 2018 ; Vol. 97. pp. 478-499.
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