Single crystal plasticity – A mesoscale based approach for modeling the mechanics of additively manufactured Inconel 718

Kergaßner A, Mergheim J, Steinmann P (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Proceedings in Applied Mathematics and Mechanics Gesellschaft für Angewandte Mathematik und Mechanik (GAMM)

DOI: 10.1002/pamm.201800389

Abstract

In this contribution the mesoscopic material behavior of columnar grained Inconel 718 is modeled with a gradient enhanced crystal plasticity formulation and simulated by means of Finite Elements. A Voronoi tessellation based method is used to model the grain structure. On the mesoscale, the thermo‐mechanical behavior is modeled using a thermal gradient‐crystal‐plasticity model, allowing for relative misorientations on the grain boundaries. Computational homogenization and macroscopic experimental data are used to inversely identify elastic and plastic mesoscopic mechanical parameters. With the homogenized RVE at hand the parameters of a general anisotropic yield criterion for the macro scale are identified.

Authors with CRIS profile

Andreas Kergaßner Lehrstuhl für Technische Mechanik (LTM) Julia Mergheim Lehrstuhl für Technische Mechanik (LTM) Paul Steinmann Lehrstuhl für Technische Mechanik (LTM)

How to cite

APA:

Kergaßner, A., Mergheim, J., & Steinmann, P. (2018). Single crystal plasticity – A mesoscale based approach for modeling the mechanics of additively manufactured Inconel 718. Proceedings in Applied Mathematics and Mechanics. https://doi.org/10.1002/pamm.201800389

MLA:

Kergaßner, Andreas, Julia Mergheim, and Paul Steinmann. "Single crystal plasticity – A mesoscale based approach for modeling the mechanics of additively manufactured Inconel 718." Proceedings in Applied Mathematics and Mechanics (2018).

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