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Experimental determination and numerical simulation of material and damage behaviour of 3d printed polyamide 12 under cyclic loading

  • The material and damage behaviour of additively manufactured polyamide 12 under cyclic loading was characterized by cyclic tests and microstructure analysis by using microscopy, X-ray refraction, and computed tomography. The results were used to determine parameters for the viscoplastic material model by Chaboche and a damage model by Gurson-Tvergaard-Needleman. The temperature was monitored during the experiments and the self-heating effect was observed. By including this effect, a higher accuracy could be achieved with the results of mechanical experiments.

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Author: Daniela SchobORCiD, Ilja SagradovORCiD, Robert RoszakORCiD, Holger SparrORCiD, Rainer FrankeORCiD, Matthias Ziegenhorn, Andreas KupschORCiD, Fabien LeonardORCiD, Bernd R. MüllerORCiD, Giovanni BrunoORCiD
DOI:https://doi.org/10.1016/j.engfracmech.2019.106841
ISSN:0013-7944
Title of the source (English):Engineering Fracture Mechanics
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2020
Contributing Corporation:Bundesanstalt für Materialforschung und -prüfung
Tag:3D printing Polyamide 12; Chaboche model; GTN model; Material and damage behaviour; X-ray refraction; computed tomography
Volume/Year:229
Number of pages:13
Article number:106841
Faculty/Chair:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Technische Mechanik und Maschinendynamik
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