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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2014, Volume 55, Issue 6, Pages 173–185 (Mi pmtf1019)  

This article is cited in 5 scientific papers (total in 5 papers)

Fracture model for structured quasibrittle materials

V. D. Kurguzova, N. S. Astapova, I. S. Astapovb

a Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
b Research Institute of Mechanics, Lomonosov Moscow State University, Moscow, 119192, Russia
Full-text PDF (283 kB) Citations (5)
Abstract: We analyze the applicability of a modified Leonov–Panasyuk–Dugdale model to the description of the propagation of a mode I crack in structured materials under plane stress conditions. For quasi-brittle materials, refined formulas of the critical length of the prefracture zone and the critical load containing a structural parameter are proposed. The Kornev model is extended to the case of quasi-ductile materials. Numerical simulation of plastic zones in square plates of a bimetal and a homogeneous material under quasi-static loading is performed. In the numerical model, the equations of deformable solid mechanics are expressed in the Lagrangian formulation, which is the most preferred for large-strain deformations of elastoplastic materials. The results of the numerical experiments are consistent with the results of calculations using the analytical model for the fracture of structured materials.
Keywords: fracture criteria, prefracture zone, characteristic size of structural element, quasi-ductile fracture diagram.
Received: 27.08.2013
Revised: 27.01.2014
English version:
Journal of Applied Mechanics and Technical Physics, 2014, Volume 55, Issue 6, Pages 1055–1065
DOI: https://doi.org/10.1134/S0021894414060182
Bibliographic databases:
Document Type: Article
UDC: 539.3
Language: Russian
Citation: V. D. Kurguzov, N. S. Astapov, I. S. Astapov, “Fracture model for structured quasibrittle materials”, Prikl. Mekh. Tekh. Fiz., 55:6 (2014), 173–185; J. Appl. Mech. Tech. Phys., 55:6 (2014), 1055–1065
Citation in format AMSBIB
\Bibitem{KurAstAst14}
\by V.~D.~Kurguzov, N.~S.~Astapov, I.~S.~Astapov
\paper Fracture model for structured quasibrittle materials
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2014
\vol 55
\issue 6
\pages 173--185
\mathnet{http://mi.mathnet.ru/pmtf1019}
\elib{https://elibrary.ru/item.asp?id=22591844}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2014
\vol 55
\issue 6
\pages 1055--1065
\crossref{https://doi.org/10.1134/S0021894414060182}
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  • https://www.mathnet.ru/eng/pmtf/v55/i6/p173
  • This publication is cited in the following 5 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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