Meso- and Macroscopic Modelling, Simulation and Numerical Homogenization of the Behaviour of Metallic Materials in Additive Manufacturing

Mesoscopic modelling and simulation of properties of additively manufactured metallic parts (C5)

(Third Party Funds Group – Sub project)

Overall project: CRC 814 - Additive Manufacturing
Project leader: Carolin Körner, Paul Steinmann
Project members: Johannes Köpf, Ludwig Herrnböck
Start date: 1. July 2019
End date: 30. June 2023
Acronym: SFB 814 (C5)
Funding source: DFG - Sonderforschungsbereiche
URL: https://www.crc814.research.fau.eu/projekte/c-bauteile/teilprojekt-c5/

Abstract

Based on the gained knowledge of projects B4 and C5, the aim of this project is to account for the influence of part borders on the resulting material/part-mesostructure for powder- and beam-based additive manufacturing technologies of metals and to model the resulting meso- and macroscopic mechanical properties. The mechanical behavior of these mesostructures and the influence of the inevitable process-based geometrical uncertainties is modelled, verified, quantified and validated especially for cellular grid-based structures.

Publications

• Kergaßner A., Mergheim J., Steinmann P.:
  Modeling of additively manufactured materials using gradient-enhanced crystal plasticity
  In: Computers & Mathematics with Applications (2018)
  ISSN: 0898-1221
  DOI: 10.1016/j.camwa.2018.05.016
• Kergaßner A., Mergheim J., Steinmann P.:
  Mesoscopic modelling of additively manufactured Inconel 718
  5th International Conference on Additive Technologies - iCAT2016 (Nürnberg)
  In: Igor Drstvenšek, Dietmar Drummer, Michael Schmidt (ed.): Proceedings 6th International Conference on Additive Technologies - iCAT2016, Ljubljana: 2016
• Kergaßner A., Mergheim J., Steinmann P.:
  Modelling additive manufactured materials using a crystal plasticity model
  In: Proceedings in Applied Mathematics and Mechanics 16 (2016), p. 355-356
  ISSN: 1617-7061
  DOI: 10.1002/pamm.201610166
• Herrnböck L., Kumar A., Steinmann P.:
  Geometrically exact elastoplastic rods: determination of yield surface in terms of stress resultants
  In: Computational Mechanics (2021)
  ISSN: 0178-7675
  DOI: 10.1007/s00466-020-01957-4
• Yang Z., Koepf JA., Markl M., Körner C.:
  Effect of scanning strategies on grain structure and texture of additively manufactured lattice struts: A numerical exploration
  In: Advanced Engineering Materials (2024)
  ISSN: 1438-1656
  DOI: 10.1002/adem.202400661