Loading rate effect on ductile crack resistance of steels using precracked Charpy specimens

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Loading rate effect on ductile crack resistance of steels using precracked Charpy specimens. / Chaouadi, Rachid; Puzzolante, Luigi; Wagemans, Jan (Peer reviewer).

In: International Journal of Pressure Vessels and Piping, Vol. 85, No. 11, 01.11.2008, p. 752-761.

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Chaouadi, Rachid ; Puzzolante, Luigi ; Wagemans, Jan. / Loading rate effect on ductile crack resistance of steels using precracked Charpy specimens. In: International Journal of Pressure Vessels and Piping. 2008 ; Vol. 85, No. 11. pp. 752-761.

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@article{dc2fe2e3b4694f8d843d14f2c45fa3be,
title = "Loading rate effect on ductile crack resistance of steels using precracked Charpy specimens",
abstract = "While loading rate effects were extensively investigated in the transition regime where fracture occurs in a brittle manner, they are comparatively much less studied in the ductile regime. The main objective of this paper is to provide experimental data on the effect of loading rate on the ductile fracture behavior and examine the relation that might exist between the various material properties. In particular, the crack resistance behavior of two ferritic steels, A533B plate and 20MnMoNi55 forging, at quasi-static and dynamic (impact) loading rates was examined. As expected, the results clearly show that the ductile crack resistance at dynamic loading rate is systematically and significantly higher than at quasi-static loading rate. Moreover, at the upper shelf plateau, while dynamic crack resistance is nearly constant, ductile resistance decreases with temperature at static loading rates. This can be associated with the strain rate sensitivity of the material and the inertial effects inducing a significant loss of constraint (loss of triaxiality). By taking these effects into account, the experimental results were rationalized.",
keywords = "Loading rate, Quasi-static, Dynamic, Ductile fracture, Crack resistance, Fracture toughness, Charpy impact, Precracked Charpy, Crack growth correction, JR-curve, Loss of constraint",
author = "Rachid Chaouadi and Luigi Puzzolante and Jan Wagemans",
note = "Score = 10",
year = "2008",
month = nov,
day = "1",
doi = "10.1016/j.ijpvp.2008.08.004",
language = "English",
volume = "85",
pages = "752--761",
journal = "International Journal of Pressure Vessels and Piping",
issn = "0308-0161",
publisher = "Elsevier",
number = "11",

}

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TY - JOUR

T1 - Loading rate effect on ductile crack resistance of steels using precracked Charpy specimens

AU - Chaouadi, Rachid

AU - Puzzolante, Luigi

A2 - Wagemans, Jan

N1 - Score = 10

PY - 2008/11/1

Y1 - 2008/11/1

N2 - While loading rate effects were extensively investigated in the transition regime where fracture occurs in a brittle manner, they are comparatively much less studied in the ductile regime. The main objective of this paper is to provide experimental data on the effect of loading rate on the ductile fracture behavior and examine the relation that might exist between the various material properties. In particular, the crack resistance behavior of two ferritic steels, A533B plate and 20MnMoNi55 forging, at quasi-static and dynamic (impact) loading rates was examined. As expected, the results clearly show that the ductile crack resistance at dynamic loading rate is systematically and significantly higher than at quasi-static loading rate. Moreover, at the upper shelf plateau, while dynamic crack resistance is nearly constant, ductile resistance decreases with temperature at static loading rates. This can be associated with the strain rate sensitivity of the material and the inertial effects inducing a significant loss of constraint (loss of triaxiality). By taking these effects into account, the experimental results were rationalized.

AB - While loading rate effects were extensively investigated in the transition regime where fracture occurs in a brittle manner, they are comparatively much less studied in the ductile regime. The main objective of this paper is to provide experimental data on the effect of loading rate on the ductile fracture behavior and examine the relation that might exist between the various material properties. In particular, the crack resistance behavior of two ferritic steels, A533B plate and 20MnMoNi55 forging, at quasi-static and dynamic (impact) loading rates was examined. As expected, the results clearly show that the ductile crack resistance at dynamic loading rate is systematically and significantly higher than at quasi-static loading rate. Moreover, at the upper shelf plateau, while dynamic crack resistance is nearly constant, ductile resistance decreases with temperature at static loading rates. This can be associated with the strain rate sensitivity of the material and the inertial effects inducing a significant loss of constraint (loss of triaxiality). By taking these effects into account, the experimental results were rationalized.

KW - Loading rate

KW - Quasi-static

KW - Dynamic

KW - Ductile fracture

KW - Crack resistance

KW - Fracture toughness

KW - Charpy impact

KW - Precracked Charpy

KW - Crack growth correction

KW - JR-curve

KW - Loss of constraint

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_91618

UR - http://knowledgecentre.sckcen.be/so2/bibref/5185

U2 - 10.1016/j.ijpvp.2008.08.004

DO - 10.1016/j.ijpvp.2008.08.004

M3 - Article

VL - 85

SP - 752

EP - 761

JO - International Journal of Pressure Vessels and Piping

JF - International Journal of Pressure Vessels and Piping

SN - 0308-0161

IS - 11

ER -

ID: 234298