Progress in understanding of intrinsic resistance to shear-mode fatigue crack growth in metallic materials

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Progress in understanding of intrinsic resistance to shear-mode fatigue crack growth in metallic materials. / Vojtek, Tomáš; Pokluda, Jaroslav; Hohenwarter, Anton et al.
In: International Journal of Fatigue, Vol. 89, 04.10.2015, p. 36-42.

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

Harvard

Vojtek, T, Pokluda, J, Hohenwarter, A & Pippan, R 2015, 'Progress in understanding of intrinsic resistance to shear-mode fatigue crack growth in metallic materials', International Journal of Fatigue, vol. 89, pp. 36-42. https://doi.org/10.1016/j.ijfatigue.2016.01.009

APA

Vojtek, T., Pokluda, J., Hohenwarter, A., & Pippan, R. (2015). Progress in understanding of intrinsic resistance to shear-mode fatigue crack growth in metallic materials. International Journal of Fatigue, 89, 36-42. https://doi.org/10.1016/j.ijfatigue.2016.01.009

Vancouver

Vojtek T, Pokluda J, Hohenwarter A, Pippan R. Progress in understanding of intrinsic resistance to shear-mode fatigue crack growth in metallic materials. International Journal of Fatigue. 2015 Oct 4;89:36-42. doi: 10.1016/j.ijfatigue.2016.01.009

Author

Vojtek, Tomáš ; Pokluda, Jaroslav ; Hohenwarter, Anton et al. / Progress in understanding of intrinsic resistance to shear-mode fatigue crack growth in metallic materials. In: International Journal of Fatigue. 2015 ; Vol. 89. pp. 36-42.

Bibtex - Download

@article{f516eb28557d4b449bfd7deb238c9b82,
title = "Progress in understanding of intrinsic resistance to shear-mode fatigue crack growth in metallic materials",
abstract = "Recently made experiments allowed measurement of effective data (free of crack tip shielding) and enabled a better understanding of intrinsic behaviour of shear-mode cracks. Influence of crystal structure and microstructure was distinguished. Experimental results for niobium showed that growth micromechanisms and effective thresholds (ΔKIIeff,th ≈ 1.0 MPa m1/2, ΔKIIIeff,th ≈ 1.4 MPa m1/2) of modes II and III cracks were different, which was also observed in other metals. Validity of the simple formula for mode II effective threshold for single-phase metals based on the dislocation emission model was confirmed. The cracks propagated in a coplanar manner along the maximum shear plane, which is a characteristic behaviour for bcc metals. Model of propagation of remote mode III loaded cracks by local mode II advances was confirmed.",
keywords = "3D fractography, Effective threshold, Micromechanisms, Modes II and III cracks, Niobium",
author = "Tom{\'a}{\v s} Vojtek and Jaroslav Pokluda and Anton Hohenwarter and Reinhard Pippan",
year = "2015",
month = oct,
day = "4",
doi = "10.1016/j.ijfatigue.2016.01.009",
language = "English",
volume = "89",
pages = "36--42",
journal = "International Journal of Fatigue",
issn = "0142-1123",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Progress in understanding of intrinsic resistance to shear-mode fatigue crack growth in metallic materials

AU - Vojtek, Tomáš

AU - Pokluda, Jaroslav

AU - Hohenwarter, Anton

AU - Pippan, Reinhard

PY - 2015/10/4

Y1 - 2015/10/4

N2 - Recently made experiments allowed measurement of effective data (free of crack tip shielding) and enabled a better understanding of intrinsic behaviour of shear-mode cracks. Influence of crystal structure and microstructure was distinguished. Experimental results for niobium showed that growth micromechanisms and effective thresholds (ΔKIIeff,th ≈ 1.0 MPa m1/2, ΔKIIIeff,th ≈ 1.4 MPa m1/2) of modes II and III cracks were different, which was also observed in other metals. Validity of the simple formula for mode II effective threshold for single-phase metals based on the dislocation emission model was confirmed. The cracks propagated in a coplanar manner along the maximum shear plane, which is a characteristic behaviour for bcc metals. Model of propagation of remote mode III loaded cracks by local mode II advances was confirmed.

AB - Recently made experiments allowed measurement of effective data (free of crack tip shielding) and enabled a better understanding of intrinsic behaviour of shear-mode cracks. Influence of crystal structure and microstructure was distinguished. Experimental results for niobium showed that growth micromechanisms and effective thresholds (ΔKIIeff,th ≈ 1.0 MPa m1/2, ΔKIIIeff,th ≈ 1.4 MPa m1/2) of modes II and III cracks were different, which was also observed in other metals. Validity of the simple formula for mode II effective threshold for single-phase metals based on the dislocation emission model was confirmed. The cracks propagated in a coplanar manner along the maximum shear plane, which is a characteristic behaviour for bcc metals. Model of propagation of remote mode III loaded cracks by local mode II advances was confirmed.

KW - 3D fractography

KW - Effective threshold

KW - Micromechanisms

KW - Modes II and III cracks

KW - Niobium

UR - http://www.scopus.com/inward/record.url?scp=84955269233&partnerID=8YFLogxK

U2 - 10.1016/j.ijfatigue.2016.01.009

DO - 10.1016/j.ijfatigue.2016.01.009

M3 - Article

VL - 89

SP - 36

EP - 42

JO - International Journal of Fatigue

JF - International Journal of Fatigue

SN - 0142-1123

ER -

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