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Numerical Investigation of Creep Damage Development in the Ni-Based Superalloy IN738 LC at 850 °C

Wolfgang Brocks1, Weidong Qi2
GKSS Research Center, Geesthacht, Germany
Robert Bosch GmbH, Schwieberdingen, Germany

Computer Modeling in Engineering & Sciences 2002, 3(3), 313-320. https://doi.org/10.3970/cmes.2002.003.313

Abstract

Results of a numerical study of creep damage development and its effect on the deformation behavior in the Ni-based superalloy IN 738 LC at 850 °C are reported. A continuum damage mechanics based anisotropic damage model has been coupled with the unified model of Chaboche, and is used for the present study. Numerical computations are performed on a plate containing a circular hole under tension. They show that the applied damage model does not cause damage localization and no significant mesh-dependence of the results are observed.

Keywords

anisotropic damage, creep damage, damage localization, mesh-dependence.

Cite This Article

Brocks, W., Qi, W. (2002). Numerical Investigation of Creep Damage Development in the Ni-Based Superalloy IN738 LC at 850 °C. CMES-Computer Modeling in Engineering & Sciences, 3(3), 313–320.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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