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Localised prior strain-hardening increases the tearing resistance of ductile steel

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Localised prior strain-hardening increases the tearing resistance of ductile steel. / Coules, Harry; Horne, Graeme; Peel, Matthew; Connolley, Thomas.

In: International Journal of Mechanical Sciences, Vol. 150, 01.2019, p. 103-111.

Research output: Contribution to journalArticle

Harvard

Coules, H, Horne, G, Peel, M & Connolley, T 2019, 'Localised prior strain-hardening increases the tearing resistance of ductile steel' International Journal of Mechanical Sciences, vol. 150, pp. 103-111. https://doi.org/10.1016/j.ijmecsci.2018.10.002

APA

Coules, H., Horne, G., Peel, M., & Connolley, T. (2019). Localised prior strain-hardening increases the tearing resistance of ductile steel. International Journal of Mechanical Sciences, 150, 103-111. https://doi.org/10.1016/j.ijmecsci.2018.10.002

Vancouver

Author

Coules, Harry ; Horne, Graeme ; Peel, Matthew ; Connolley, Thomas. / Localised prior strain-hardening increases the tearing resistance of ductile steel. In: International Journal of Mechanical Sciences. 2019 ; Vol. 150. pp. 103-111.

Bibtex

@article{32210e9c60324f16bec1b5d675840ee9,
title = "Localised prior strain-hardening increases the tearing resistance of ductile steel",
abstract = "In structural materials, ‘intrinsic’ toughening originates from plastic dissipation of strain energy at the tips of cracks. This depends on a material's microstructure and its stress–strain response. By introducing a spatially-varying distribution of prior strain-hardening into a material, we can modify the stress field which develops around a crack as it is loaded, producing an increased resistance to ductile tearing. We demonstrate this toughening effect using synchrotron X-ray diffraction and digital image correlation measurements of the crack tip region in a ductile ferritic steel. Localised strain-hardening also introduces a residual stress, but this is shown not to contribute significantly to the initiation of tearing in this material.",
keywords = "Ductile tearing, Digital image correlation, Energy-dispersive X-ray diffraction, Finite element analysis",
author = "Harry Coules and Graeme Horne and Matthew Peel and Thomas Connolley",
year = "2019",
month = "1",
doi = "10.1016/j.ijmecsci.2018.10.002",
language = "English",
volume = "150",
pages = "103--111",
journal = "International Journal of Mechanical Sciences",
issn = "0020-7403",
publisher = "Elsevier Limited",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Localised prior strain-hardening increases the tearing resistance of ductile steel

AU - Coules, Harry

AU - Horne, Graeme

AU - Peel, Matthew

AU - Connolley, Thomas

PY - 2019/1

Y1 - 2019/1

N2 - In structural materials, ‘intrinsic’ toughening originates from plastic dissipation of strain energy at the tips of cracks. This depends on a material's microstructure and its stress–strain response. By introducing a spatially-varying distribution of prior strain-hardening into a material, we can modify the stress field which develops around a crack as it is loaded, producing an increased resistance to ductile tearing. We demonstrate this toughening effect using synchrotron X-ray diffraction and digital image correlation measurements of the crack tip region in a ductile ferritic steel. Localised strain-hardening also introduces a residual stress, but this is shown not to contribute significantly to the initiation of tearing in this material.

AB - In structural materials, ‘intrinsic’ toughening originates from plastic dissipation of strain energy at the tips of cracks. This depends on a material's microstructure and its stress–strain response. By introducing a spatially-varying distribution of prior strain-hardening into a material, we can modify the stress field which develops around a crack as it is loaded, producing an increased resistance to ductile tearing. We demonstrate this toughening effect using synchrotron X-ray diffraction and digital image correlation measurements of the crack tip region in a ductile ferritic steel. Localised strain-hardening also introduces a residual stress, but this is shown not to contribute significantly to the initiation of tearing in this material.

KW - Ductile tearing

KW - Digital image correlation

KW - Energy-dispersive X-ray diffraction

KW - Finite element analysis

UR - http://www.scopus.com/inward/record.url?scp=85054812076&partnerID=8YFLogxK

U2 - 10.1016/j.ijmecsci.2018.10.002

DO - 10.1016/j.ijmecsci.2018.10.002

M3 - Article

VL - 150

SP - 103

EP - 111

JO - International Journal of Mechanical Sciences

T2 - International Journal of Mechanical Sciences

JF - International Journal of Mechanical Sciences

SN - 0020-7403

ER -