To analyze the formation of multiple shear bands in HY-100 steel, we consider an infinitely extended layer of finite thickness subjected to shear loading. The perturbation approach, associated with numerical methods, is used to determine the instability modes. The criteria of Wright–Ockendon and Molinari are used to determine the shear band spacing. The hypothesis consisting in considering the proportion of plastic work dissipated as heat (quantified by the Taylor–Quinney coefficient ) as independent of the loading path is now recognized as highly simplistic. The present study attempts to provide a systematic approach to the inelastic heat fraction evolution for a general loading within the framework of thermoviscoplastic standard modeling, including a number of material parameters as strain hardening, strain rate sensitivity, and thermal softening. The effect of each material parameter on the shear band spacing is determined by using a power law constitutive relation. The Johnson–Cook and power law models are used to illustrate the influence of the constitutive relation on the results for the adiabatic shear band spacing by studying the response of HY-100 steel. We have compared our results with available experimental results in the literature over a very wide range of strain rates . In this study, we show that the variation in the Taylor–Quinney parameter as a function of shear strain is an important parameter that plays a significant role in the calculation of the shear band spacing.
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April 2011
Research Papers
Influence of Dissipated Energy on Shear Band Spacing in HY-100 Steel
O. Oussouaddi,
O. Oussouaddi
EMMS, Faculté des Sciences et Techniques,
Université My Ismaïl
, Errachidia 52000, Morocco
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L. Daridon,
L. Daridon
LMGC-UMR CNRS 5508,
Université Montpellier II
, CC 048, Montpellier 34095, France
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S. Ahzi,
S. Ahzi
IMFS-UMR CNRS n° 7507,
e-mail: ahzi@unistra.fr
Université Louis Pasteur
, 2 Rue Boussingault, Strasbourg 67000, France
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A. Chrysochoos
A. Chrysochoos
LMGC-UMR CNRS 5508,
Université Montpellier II
, CC 048, Montpellier 34095, France
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O. Oussouaddi
EMMS, Faculté des Sciences et Techniques,
Université My Ismaïl
, Errachidia 52000, Morocco
L. Daridon
LMGC-UMR CNRS 5508,
Université Montpellier II
, CC 048, Montpellier 34095, France
S. Ahzi
IMFS-UMR CNRS n° 7507,
Université Louis Pasteur
, 2 Rue Boussingault, Strasbourg 67000, Francee-mail: ahzi@unistra.fr
A. Chrysochoos
LMGC-UMR CNRS 5508,
Université Montpellier II
, CC 048, Montpellier 34095, FranceJ. Eng. Mater. Technol. Apr 2011, 133(2): 021002 (6 pages)
Published Online: March 3, 2011
Article history
Received:
March 24, 2009
Revised:
February 21, 2010
Online:
March 3, 2011
Published:
March 3, 2011
Citation
Oussouaddi, O., Daridon, L., Ahzi, S., and Chrysochoos, A. (March 3, 2011). "Influence of Dissipated Energy on Shear Band Spacing in HY-100 Steel." ASME. J. Eng. Mater. Technol. April 2011; 133(2): 021002. https://doi.org/10.1115/1.4001592
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