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Ductile tearing predictions with Wellman’s failure model

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Abstract

Predictions for the Sandia National Laboratories fracture challenge (Boyce et al. in Int J Fract 2013) were generated using a transient dynamic finite element code with a multi-linear elastic plastic failure model developed by Wellman (Simple approach to modeling ductile failure. Sandia National Laboratories, Albuquerque 2012). This model is a conventional, rate independent, von Mises plasticity model for metals with user-prescribed hardening as a function of equivalent plastic strain. In addition to conventional plasticity, this model has empirical criteria for crack initiation and growth. Ductile tearing predictions generated with this model were found to be in good agreement with experimental measurements and observations.

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Acknowledgments

Reviews of this paper by two external reviewers, and internal reviewers, Dr. E. Corona and Dr. J. Emery are gratefully acknowledged and improved the quality of this paper. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the US Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000. Sandia National Laboratories support of this work is gratefully acknowledged.

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Authors and Affiliations

  1. Sandia National Laboratories, Albuquerque, NM, USA

    Michael K. Neilsen, Kristin N. Dion, H. Eliot Fang, Amy K. Kaczmarowski & Erin Karasz

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  1. Michael K. Neilsen
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  2. Kristin N. Dion
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  3. H. Eliot Fang
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  4. Amy K. Kaczmarowski
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  5. Erin Karasz
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Correspondence to Michael K. Neilsen.

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Neilsen, M.K., Dion, K.N., Fang, H.E. et al. Ductile tearing predictions with Wellman’s failure model. Int J Fract 186, 107–115 (2014). https://doi.org/10.1007/s10704-013-9913-5

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  • DOI: https://doi.org/10.1007/s10704-013-9913-5

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