In situ estimation of fatigue crack parameters by digital image correlation under cyclic loading with single overload

Abstract

The paper represents the investigation of crack propagation in aluminium alloy AA2024 in a case of constant cyclic loading with single overload. The parameters of the process were evaluated by means of optical and noncontact digital image correlation technique which allows precise in situ measurements and provides local strain data. There have been analysed strain fields, local strains at the crack tip and crack closure level in order to reveal the effect of overload on crack growth parameters. Results are consistent with published data and developed mathematical models-the highest impact is emerged when crack extended into overload plastic zone by 30%.

Original language	English
Article number	12014
Journal	IOP Conference Series: Materials Science and Engineering
Volume	511
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/511/1/012014
Publication status	Published - 24 Apr 2019
Event	International Scientific and Technical Youth Conference on Perspective Materials of Constructional and Medical Purpose 2018, PMCP 2018 - Tomsk, Russian Federation Duration: 26 Nov 2018 → 30 Nov 2018

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)

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10.1088/1757-899X/511/1/012014

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In situ estimation of fatigue crack parameters by digital image correlation under cyclic loading with single overload. / Eremin, A. V.; Byakov, A. V.; Lyubutin, P. S.; Panin, S. V.; Titkov, V. V.

In: IOP Conference Series: Materials Science and Engineering, Vol. 511, No. 1, 12014, 24.04.2019.

Research output: Contribution to journal › Conference article › peer-review

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title = "In situ estimation of fatigue crack parameters by digital image correlation under cyclic loading with single overload",

abstract = "The paper represents the investigation of crack propagation in aluminium alloy AA2024 in a case of constant cyclic loading with single overload. The parameters of the process were evaluated by means of optical and noncontact digital image correlation technique which allows precise in situ measurements and provides local strain data. There have been analysed strain fields, local strains at the crack tip and crack closure level in order to reveal the effect of overload on crack growth parameters. Results are consistent with published data and developed mathematical models-the highest impact is emerged when crack extended into overload plastic zone by 30%.",

author = "Eremin, {A. V.} and Byakov, {A. V.} and Lyubutin, {P. S.} and Panin, {S. V.} and Titkov, {V. V.}",

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AU - Eremin, A. V.

AU - Byakov, A. V.

AU - Lyubutin, P. S.

AU - Panin, S. V.

AU - Titkov, V. V.

PY - 2019/4/24

Y1 - 2019/4/24

N2 - The paper represents the investigation of crack propagation in aluminium alloy AA2024 in a case of constant cyclic loading with single overload. The parameters of the process were evaluated by means of optical and noncontact digital image correlation technique which allows precise in situ measurements and provides local strain data. There have been analysed strain fields, local strains at the crack tip and crack closure level in order to reveal the effect of overload on crack growth parameters. Results are consistent with published data and developed mathematical models-the highest impact is emerged when crack extended into overload plastic zone by 30%.

AB - The paper represents the investigation of crack propagation in aluminium alloy AA2024 in a case of constant cyclic loading with single overload. The parameters of the process were evaluated by means of optical and noncontact digital image correlation technique which allows precise in situ measurements and provides local strain data. There have been analysed strain fields, local strains at the crack tip and crack closure level in order to reveal the effect of overload on crack growth parameters. Results are consistent with published data and developed mathematical models-the highest impact is emerged when crack extended into overload plastic zone by 30%.

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JO - IOP Conference Series: Materials Science and Engineering

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In situ estimation of fatigue crack parameters by digital image correlation under cyclic loading with single overload

Abstract

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