Modelling additive manufactured materials using a crystal plasticity model

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Kergaßner A, Mergheim J, Steinmann P
Zeitschrift: Proceedings in Applied Mathematics and Mechanics
Jahr der Veröffentlichung: 2016
Band: 16
Heftnummer: 1
Seitenbereich: 355-356
ISSN: 1617-7061
Sprache: Englisch


Abstract


In additive manufacturing complex parts are built from thin layers of powder material. In the process called selective electron beam melting (SEBM), the powder is fused by the energy of an electron beam. The electron beam is guided by electromagnetic fields which allows a very fast deection, opening the way to various scan strategies. By using these scan strategies it is possible to control the resulting mesostructure in the material, which may range from a columnar to an equiaxed grain structure. With dierent grain structures, dierent macroscopic properties are expected. Long and oriented grains cause highly anisotropic behaviour and a uniform grain stucture will result in isotropic mechanical behaviour. In this contribution the macroscopic behaviour of additively manufactured Inconel 718 will be identified using a crystal plasticity model on the meso-level. The experimentally observed grain structures will be used to generate a representative volume element. Based on this RVE and computational homogenization, macroscopic mechanical param-eters will be identified and compared with experimental results.



FAU-Autoren / FAU-Herausgeber

Kergaßner, Andreas
Lehrstuhl für Technische Mechanik
Mergheim, Julia PD Dr.
Lehrstuhl für Technische Mechanik
Steinmann, Paul Prof. Dr.-Ing.
Lehrstuhl für Technische Mechanik


Zitierweisen

APA:
Kergaßner, A., Mergheim, J., & Steinmann, P. (2016). Modelling additive manufactured materials using a crystal plasticity model. Proceedings in Applied Mathematics and Mechanics, 16(1), 355-356. https://dx.doi.org/10.1002/pamm.201610166

MLA:
Kergaßner, Andreas, Julia Mergheim, and Paul Steinmann. "Modelling additive manufactured materials using a crystal plasticity model." Proceedings in Applied Mathematics and Mechanics 16.1 (2016): 355-356.

BibTeX: 

Zuletzt aktualisiert 2018-17-10 um 15:00