The effect of interacting small defects on the fatigue limit of a medium carbon steel

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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The effect of interacting small defects on the fatigue limit of a medium carbon steel. / Åman, Mari; Okazaki, Saburo; Matsunaga, Hisao; Marquis, Gary B.; Remes, Heikki.

21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21). ed. / F Iacoviello; L Susmel; D Firrao; G Ferro. Elsevier Science B.V., 2016. p. 3322-3329 (Procedia Structural Integrity; Vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Åman, M, Okazaki, S, Matsunaga, H, Marquis, GB & Remes, H 2016, The effect of interacting small defects on the fatigue limit of a medium carbon steel. in F Iacoviello, L Susmel, D Firrao & G Ferro (eds), 21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21). Procedia Structural Integrity, vol. 2, Elsevier Science B.V., pp. 3322-3329, European Conference on Fracture, Catania, Italy, 20/06/2016. https://doi.org/10.1016/j.prostr.2016.06.414

APA

Åman, M., Okazaki, S., Matsunaga, H., Marquis, G. B., & Remes, H. (2016). The effect of interacting small defects on the fatigue limit of a medium carbon steel. In F. Iacoviello, L. Susmel, D. Firrao, & G. Ferro (Eds.), 21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21) (pp. 3322-3329). (Procedia Structural Integrity; Vol. 2). Elsevier Science B.V.. https://doi.org/10.1016/j.prostr.2016.06.414

Vancouver

Åman M, Okazaki S, Matsunaga H, Marquis GB, Remes H. The effect of interacting small defects on the fatigue limit of a medium carbon steel. In Iacoviello F, Susmel L, Firrao D, Ferro G, editors, 21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21). Elsevier Science B.V. 2016. p. 3322-3329. (Procedia Structural Integrity). https://doi.org/10.1016/j.prostr.2016.06.414

Author

Åman, Mari ; Okazaki, Saburo ; Matsunaga, Hisao ; Marquis, Gary B. ; Remes, Heikki. / The effect of interacting small defects on the fatigue limit of a medium carbon steel. 21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21). editor / F Iacoviello ; L Susmel ; D Firrao ; G Ferro. Elsevier Science B.V., 2016. pp. 3322-3329 (Procedia Structural Integrity).

Bibtex - Download

@inproceedings{4766f1e18af8492c9f2fbfd3286d47d2,
title = "The effect of interacting small defects on the fatigue limit of a medium carbon steel",
abstract = "Structural steels contain various material irregularities and natural defects. These cause local stress concentrations, from which fatigue cracks tend to initiate. Two defects in close proximity to each other may affect local stress distributions and thus, begin to interact. In this paper, the effect of interacting small cracks on the fatigue limit is systematically investigated in a medium carbon steel. The growth of interacting cracks, as well as the characteristics of non-propagating cracks and microstructural aspects were closely examined via the plastic replica method. It was found that although the fatigue limit is essentially controlled by the mechanics of interacting cracks, based on their configuration, the local microstructure comprised of ferrite and pearlite has a statistical scatter effect on the behaviour of interacting cracks and non-propagating thresholds. With respect to the fatigue limit, when two defects were in close proximity, they behaved as would a larger single defect. However, with greater spacing between defects, rather than mechanical factors, it is the local microstructure which determines the location and characteristics of non propagating cracks. Copyright (C) 2016 The Authors. Published by Elsevier B.V.",
keywords = "small crack, interacting cracks, interaction effect, fatigue limit, medium carbon steel, non-propagating crack",
author = "Mari {\AA}man and Saburo Okazaki and Hisao Matsunaga and Marquis, {Gary B.} and Heikki Remes",
year = "2016",
doi = "10.1016/j.prostr.2016.06.414",
language = "English",
series = "Procedia Structural Integrity",
publisher = "Elsevier Science B.V.",
pages = "3322--3329",
editor = "F Iacoviello and L Susmel and D Firrao and G Ferro",
booktitle = "21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21)",
address = "Netherlands",

}

RIS - Download

TY - GEN

T1 - The effect of interacting small defects on the fatigue limit of a medium carbon steel

AU - Åman, Mari

AU - Okazaki, Saburo

AU - Matsunaga, Hisao

AU - Marquis, Gary B.

AU - Remes, Heikki

PY - 2016

Y1 - 2016

N2 - Structural steels contain various material irregularities and natural defects. These cause local stress concentrations, from which fatigue cracks tend to initiate. Two defects in close proximity to each other may affect local stress distributions and thus, begin to interact. In this paper, the effect of interacting small cracks on the fatigue limit is systematically investigated in a medium carbon steel. The growth of interacting cracks, as well as the characteristics of non-propagating cracks and microstructural aspects were closely examined via the plastic replica method. It was found that although the fatigue limit is essentially controlled by the mechanics of interacting cracks, based on their configuration, the local microstructure comprised of ferrite and pearlite has a statistical scatter effect on the behaviour of interacting cracks and non-propagating thresholds. With respect to the fatigue limit, when two defects were in close proximity, they behaved as would a larger single defect. However, with greater spacing between defects, rather than mechanical factors, it is the local microstructure which determines the location and characteristics of non propagating cracks. Copyright (C) 2016 The Authors. Published by Elsevier B.V.

AB - Structural steels contain various material irregularities and natural defects. These cause local stress concentrations, from which fatigue cracks tend to initiate. Two defects in close proximity to each other may affect local stress distributions and thus, begin to interact. In this paper, the effect of interacting small cracks on the fatigue limit is systematically investigated in a medium carbon steel. The growth of interacting cracks, as well as the characteristics of non-propagating cracks and microstructural aspects were closely examined via the plastic replica method. It was found that although the fatigue limit is essentially controlled by the mechanics of interacting cracks, based on their configuration, the local microstructure comprised of ferrite and pearlite has a statistical scatter effect on the behaviour of interacting cracks and non-propagating thresholds. With respect to the fatigue limit, when two defects were in close proximity, they behaved as would a larger single defect. However, with greater spacing between defects, rather than mechanical factors, it is the local microstructure which determines the location and characteristics of non propagating cracks. Copyright (C) 2016 The Authors. Published by Elsevier B.V.

KW - small crack

KW - interacting cracks

KW - interaction effect

KW - fatigue limit

KW - medium carbon steel

KW - non-propagating crack

U2 - 10.1016/j.prostr.2016.06.414

DO - 10.1016/j.prostr.2016.06.414

M3 - Conference contribution

T3 - Procedia Structural Integrity

SP - 3322

EP - 3329

BT - 21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21)

A2 - Iacoviello, F

A2 - Susmel, L

A2 - Firrao, D

A2 - Ferro, G

PB - Elsevier Science B.V.

ER -

ID: 10392490