Advances on Mode I Fracture Testing in Brittle and Quasi-Brittle Materials with X-Ray Tomography

Antoine Cornet; David Eastwood; Neil K. Bourne; Paul Mummery; C.M. Cady; Christoph Rau

doi:10.1063/12.0000931

Advances on Mode I Fracture Testing in Brittle and Quasi-Brittle Materials with X-Ray Tomography

Antoine Cornet, David Eastwood, Neil K. Bourne, Paul Mummery, C.M. Cady, Christoph Rau

Research output: Contribution to journal › Article › peer-review

Abstract

Through the case study of nuclear graphite, we show how x-ray computed tomography and Digital Volume Correlation enable quantitative monitoring of plasticity development in-situ in volume during material failure. Using a specific sample test geometry particularly suited for x-ray tomography, we applied Digital Volume Correlation to extract the strain field. Application of an experimentally derived threshold is used to distinguish between elastic's and plastic strains around the crack tip, which allow the monitoring of the extension of the fracture process zone during crack propagation. Moreover, dynamic experiments with a time resolution up to the millisecond are now feasible using a recently suggested combination of X-ray computed tomography and Digital Volume Correlation.

Original language	English
Article number	100005
Journal	AIP Conference Proceedings
Volume	2272
DOIs	https://doi.org/10.1063/12.0000931
Publication status	Published - 2 Nov 2020

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10.1063/12.0000931

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title = "Advances on Mode I Fracture Testing in Brittle and Quasi-Brittle Materials with X-Ray Tomography",

abstract = "Through the case study of nuclear graphite, we show how x-ray computed tomography and Digital Volume Correlation enable quantitative monitoring of plasticity development in-situ in volume during material failure. Using a specific sample test geometry particularly suited for x-ray tomography, we applied Digital Volume Correlation to extract the strain field. Application of an experimentally derived threshold is used to distinguish between elastic's and plastic strains around the crack tip, which allow the monitoring of the extension of the fracture process zone during crack propagation. Moreover, dynamic experiments with a time resolution up to the millisecond are now feasible using a recently suggested combination of X-ray computed tomography and Digital Volume Correlation.",

author = "Antoine Cornet and David Eastwood and Bourne, {Neil K.} and Paul Mummery and C.M. Cady and Christoph Rau",

note = "Funding Information: This work was carried out with the support of the Diamond Light Source, beamline I13 (proposal MT19560-1). The authors wish to thank the all the staff of the I13 beamline in Diamond, as well as Dr. Mahmoud Mostafavi and Dr. Simon Tongue of the university of Bristol for the discussion on J-integrals derivation. This work is supported by the EPSRC project “Reducing Risk through Uncertainty Quantification for Past, Present and Future Generations of Nuclear Power Plants” (EP/R012423/1). Funding Information: This work was carried out with the support of the Diamond Light Source, beamline I13 (proposal MT19560-1). The authors wish to thank the all the staff of the I13 beamline in Diamond, as well as Dr. Mahmoud Mostafavi and Dr. Simon Tongue of the university of Bristol for the discussion on J-integrals derivation. This work is supported by the EPSRC project ?Reducing Risk through Uncertainty Quantification for Past, Present and Future Generations of Nuclear Power Plants? (EP/R012423/1). Publisher Copyright: {\textcopyright} 2020 American Institute of Physics Inc.. All rights reserved.",

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doi = "10.1063/12.0000931",

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journal = "AIP Conference Proceedings",

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AU - Eastwood, David

AU - Bourne, Neil K.

AU - Mummery, Paul

AU - Cady, C.M.

AU - Rau, Christoph

N1 - Funding Information: This work was carried out with the support of the Diamond Light Source, beamline I13 (proposal MT19560-1). The authors wish to thank the all the staff of the I13 beamline in Diamond, as well as Dr. Mahmoud Mostafavi and Dr. Simon Tongue of the university of Bristol for the discussion on J-integrals derivation. This work is supported by the EPSRC project “Reducing Risk through Uncertainty Quantification for Past, Present and Future Generations of Nuclear Power Plants” (EP/R012423/1). Funding Information: This work was carried out with the support of the Diamond Light Source, beamline I13 (proposal MT19560-1). The authors wish to thank the all the staff of the I13 beamline in Diamond, as well as Dr. Mahmoud Mostafavi and Dr. Simon Tongue of the university of Bristol for the discussion on J-integrals derivation. This work is supported by the EPSRC project ?Reducing Risk through Uncertainty Quantification for Past, Present and Future Generations of Nuclear Power Plants? (EP/R012423/1). Publisher Copyright: © 2020 American Institute of Physics Inc.. All rights reserved.

PY - 2020/11/2

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N2 - Through the case study of nuclear graphite, we show how x-ray computed tomography and Digital Volume Correlation enable quantitative monitoring of plasticity development in-situ in volume during material failure. Using a specific sample test geometry particularly suited for x-ray tomography, we applied Digital Volume Correlation to extract the strain field. Application of an experimentally derived threshold is used to distinguish between elastic's and plastic strains around the crack tip, which allow the monitoring of the extension of the fracture process zone during crack propagation. Moreover, dynamic experiments with a time resolution up to the millisecond are now feasible using a recently suggested combination of X-ray computed tomography and Digital Volume Correlation.

AB - Through the case study of nuclear graphite, we show how x-ray computed tomography and Digital Volume Correlation enable quantitative monitoring of plasticity development in-situ in volume during material failure. Using a specific sample test geometry particularly suited for x-ray tomography, we applied Digital Volume Correlation to extract the strain field. Application of an experimentally derived threshold is used to distinguish between elastic's and plastic strains around the crack tip, which allow the monitoring of the extension of the fracture process zone during crack propagation. Moreover, dynamic experiments with a time resolution up to the millisecond are now feasible using a recently suggested combination of X-ray computed tomography and Digital Volume Correlation.

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Advances on Mode I Fracture Testing in Brittle and Quasi-Brittle Materials with X-Ray Tomography

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UoMaH: The University of Manchester at Harwell

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Advances on Mode I Fracture Testing in Brittle and Quasi-Brittle Materials with X-Ray Tomography

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UoMaH: The University of Manchester at Harwell

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