Dissipative dynamic fracture of disordered systems

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© 1995 American Physical Society (APS). This is the accepted version of the following article: Rautiainen, T.T. & Alava, Mikko J. & Kaski, K. 1995. Dissipative dynamic fracture of disordered systems. Physical Review E. Volume 51, Issue 4. R2727-R2730. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.51.r2727, which has been published in final form at http://journals.aps.org/pre/abstract/10.1103/PhysRevE.51.R2727.

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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

1995

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Mcode

Degree programme

Language

en

Pages

R2727-R2730

Series

Physical Review E, Volume 51, Issue 4

Abstract

Breakdown of two-dimensional disordered systems is studied with a time-dependent network model. The dependence of fracture process on the local relaxation of the force field is included within the framework of Maxwellian viscoelasticity. The dynamics and characteristics of crack formation and propagation are shown to depend on disorder and relative time scales of dissipation and loading. Brittle behavior is encountered in the adiabatic limit of slow straining. At finite strain rates, the development of damage shows ductile behavior with increasing dissipation. Nucleation of cracks in various dynamical situations is discussed.

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Keywords

dynamic fractures, two-dimensional disordered systems, Maxwellian viscoelasticity

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Citation

Rautiainen, T.T. & Alava, Mikko J. & Kaski, K. 1995. Dissipative dynamic fracture of disordered systems. Physical Review E. Volume 51, Issue 4. R2727-R2730. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.51.r2727.