The design equations for pipelines subjected to both internal pressure and longitudinal loading are based on the isotropic hardening plasticity model. However, high strength steel (HSS) pipelines exhibit plastic anisotropy, which cannot be incorporated in the traditional isotropic hardening plasticity model. The stress strain behaviors of HSS in the longitudinal and the circumferential directions are different. Thus, it would not be desirable to adopt the same design equations based on the isotropic hardening plasticity model for HSS pipelines. The design equations of HSS steel pipelines have to be developed by solving numerical models incorporating a suitable material plasticity constitutive model for the HSS that can deal with the exhibited plastic anisotropy. In this paper, various plasticity models are studied and an appropriate plasticity model is adopted and calibrated to model the plastic anisotropy exhibited by the HSS.
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September 2012
Research Papers
Modeling the Deformation Response of High Strength Steel Pipelines—Part I: Material Characterization to Model the Plastic Anisotropy
Sunil Neupane,
Sunil Neupane
Civil and Environmental Engineering,
University of Alberta
, Edmonton, Alberta T6G 2W2, Canada
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Samer Adeeb,
Samer Adeeb
Civil and Environmental Engineering,
University of Alberta
, Edmonton, Alberta T6G 2W2, Canada
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Roger Cheng,
Roger Cheng
Civil and Environmental Engineering,
University of Alberta
, Edmonton, Alberta T6G 2W2, Canada
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James Ferguson,
James Ferguson
TransCanada Pipelines Ltd., Calgary, Alberta T2P 5H1,
Canada
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Michael Martens
Michael Martens
TransCanada Pipelines Ltd., Calgary, Alberta T2P 5H1,
Canada
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Sunil Neupane
Civil and Environmental Engineering,
University of Alberta
, Edmonton, Alberta T6G 2W2, Canada
Samer Adeeb
Civil and Environmental Engineering,
University of Alberta
, Edmonton, Alberta T6G 2W2, Canada
Roger Cheng
Civil and Environmental Engineering,
University of Alberta
, Edmonton, Alberta T6G 2W2, Canada
James Ferguson
TransCanada Pipelines Ltd., Calgary, Alberta T2P 5H1,
Canada
Michael Martens
TransCanada Pipelines Ltd., Calgary, Alberta T2P 5H1,
Canada
J. Appl. Mech. Sep 2012, 79(5): 051002 (9 pages)
Published Online: June 21, 2012
Article history
Received:
April 11, 2011
Revised:
January 17, 2012
Posted:
March 15, 2012
Published:
June 21, 2012
Online:
June 21, 2012
Citation
Neupane, S., Adeeb, S., Cheng, R., Ferguson, J., and Martens, M. (June 21, 2012). "Modeling the Deformation Response of High Strength Steel Pipelines—Part I: Material Characterization to Model the Plastic Anisotropy." ASME. J. Appl. Mech. September 2012; 79(5): 051002. https://doi.org/10.1115/1.4006380
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