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Instability of critical characteristics of crack propagation. / Petrov, Y. V.; Cherkasov, A. V.; Kazarinov, N. A.

In: Acta Mechanica, 18.11.2020.

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@article{5957923a88354ea7b6574c5564af62ce,
title = "Instability of critical characteristics of crack propagation",
abstract = "The paper presents the numerically evaluated dependence of the stress intensity factor (SIF) on crack velocity (KI- a˙ dependence) in Homalite-100 specimens subjected to pulse loading. Experiments on crack propagation (Ravi-Chandar and Knauss in Int J Fract 25:247–262, 1984. https://doi.org/10.1007/BF00963460; Int J Fract 26:65–80, 1984. https://doi.org/10.1007/BF01152313; Int J Fract 26:141–154, 1984. https://doi.org/10.1007/BF01157550; Int J Fract 26:189–200, 1984. https://doi.org/10.1007/bf01140627) were simulated using the finite element method and incubation time fracture criterion. According to (Ravi-Chandar and Knauss in Int J Fract 26:141–154, 1984. https://doi.org/10.1007/BF01157550), experimental data on the SIF–crack velocity dependence exhibit unstable behavior, i.e. considerable scattering of the SIF values: a broad range of SIF values corresponds to a single crack velocity. This way, the conventional approach based on a KI- a˙ dependence being a material property is not applicable in this case. Such a phenomenon is also observed in a numerically obtained KI- a˙ dependence, meaning that the developed approach makes it possible to evade the known ambiguity of the KI- a˙ relation to predict the crack propagation.",
author = "Petrov, {Y. V.} and Cherkasov, {A. V.} and Kazarinov, {N. A.}",
note = "Publisher Copyright: {\textcopyright} 2020, Springer-Verlag GmbH Austria, part of Springer Nature. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2020",
month = nov,
day = "18",
doi = "10.1007/s00707-020-02852-y",
language = "English",
journal = "Acta Mechanica",
issn = "0001-5970",
publisher = "Springer Nature",

}

RIS

TY - JOUR

T1 - Instability of critical characteristics of crack propagation

AU - Petrov, Y. V.

AU - Cherkasov, A. V.

AU - Kazarinov, N. A.

N1 - Publisher Copyright: © 2020, Springer-Verlag GmbH Austria, part of Springer Nature. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/11/18

Y1 - 2020/11/18

N2 - The paper presents the numerically evaluated dependence of the stress intensity factor (SIF) on crack velocity (KI- a˙ dependence) in Homalite-100 specimens subjected to pulse loading. Experiments on crack propagation (Ravi-Chandar and Knauss in Int J Fract 25:247–262, 1984. https://doi.org/10.1007/BF00963460; Int J Fract 26:65–80, 1984. https://doi.org/10.1007/BF01152313; Int J Fract 26:141–154, 1984. https://doi.org/10.1007/BF01157550; Int J Fract 26:189–200, 1984. https://doi.org/10.1007/bf01140627) were simulated using the finite element method and incubation time fracture criterion. According to (Ravi-Chandar and Knauss in Int J Fract 26:141–154, 1984. https://doi.org/10.1007/BF01157550), experimental data on the SIF–crack velocity dependence exhibit unstable behavior, i.e. considerable scattering of the SIF values: a broad range of SIF values corresponds to a single crack velocity. This way, the conventional approach based on a KI- a˙ dependence being a material property is not applicable in this case. Such a phenomenon is also observed in a numerically obtained KI- a˙ dependence, meaning that the developed approach makes it possible to evade the known ambiguity of the KI- a˙ relation to predict the crack propagation.

AB - The paper presents the numerically evaluated dependence of the stress intensity factor (SIF) on crack velocity (KI- a˙ dependence) in Homalite-100 specimens subjected to pulse loading. Experiments on crack propagation (Ravi-Chandar and Knauss in Int J Fract 25:247–262, 1984. https://doi.org/10.1007/BF00963460; Int J Fract 26:65–80, 1984. https://doi.org/10.1007/BF01152313; Int J Fract 26:141–154, 1984. https://doi.org/10.1007/BF01157550; Int J Fract 26:189–200, 1984. https://doi.org/10.1007/bf01140627) were simulated using the finite element method and incubation time fracture criterion. According to (Ravi-Chandar and Knauss in Int J Fract 26:141–154, 1984. https://doi.org/10.1007/BF01157550), experimental data on the SIF–crack velocity dependence exhibit unstable behavior, i.e. considerable scattering of the SIF values: a broad range of SIF values corresponds to a single crack velocity. This way, the conventional approach based on a KI- a˙ dependence being a material property is not applicable in this case. Such a phenomenon is also observed in a numerically obtained KI- a˙ dependence, meaning that the developed approach makes it possible to evade the known ambiguity of the KI- a˙ relation to predict the crack propagation.

UR - http://www.scopus.com/inward/record.url?scp=85096203703&partnerID=8YFLogxK

U2 - 10.1007/s00707-020-02852-y

DO - 10.1007/s00707-020-02852-y

M3 - Article

AN - SCOPUS:85096203703

JO - Acta Mechanica

JF - Acta Mechanica

SN - 0001-5970

ER -

ID: 76244265