Experimental determination and numerical simulation of material and damage behaviour of 3D printed polyamide 12 under quasi-static loading

• Autorzy: Schob D. , Roszak R. , Sagradov I. , Sparr H. , Ziegenhorn M. , Kupsch A. , Léonard F. , Müller B. R. , Bruno G.

Identyfikatory

DOI

10.24423/aom.3162

• Konferencja: Solid Mechanics Conference (SolMech 2018) (41 ; 27–31.08. 2018 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

In order to characterise the material and damage behaviour of additively manufactured polyamide 12 (PA12) under quasi-static load and to implement it in a numerical model, experiments under quasi-static load as well as microstructural investigations were carried out. Selective laser sintering (SLS) was used as the manufacturing process. For the classification of the material behaviour, quasi-static cyclic tests with holding times as well as tensile tests were performed. X-ray refraction and computed tomography (CT) were used to investigate the damage behaviour. The Chaboche model, which has already been applied for metallic materials under thermomechanical loading, served as the basis for the selection of the numerical material model. The same procedure was used for the selection of the damage model, where the Gurson–Tvergaard–Needleman (GTN) model was chosen, which was already used for porous metallic materials. The Chaboche model shows very good agreement with experimental results. Furthermore, the coupling with the GTN model allows a very good modelling of the damage behaviour. Finally, it could be shown that the selected models are suitable to simulate the material and damage behaviour of 3D printed PA12.

Słowa kluczowe

EN

polyamide 12; 3D printing; viscoplastic; Chaboche model; damage; GTN model; X-Ray refraction; computed tomography

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2019
• Tom: Vol. 71, nr 4-5
• Strony: 507--526
• Opis fizyczny: Bibliogr. 28 poz., rys. kolor.

Twórcy

autor

Schob D.

• Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany

autor

Roszak R.

• Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
• Poznan University of Technology, 60-965 Poznan, Poland

autor

Sagradov I.

• Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany

autor

Sparr H.

• Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany

autor

Ziegenhorn M.

• Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany

autor

Kupsch A.

• BAM, Bundesanstalt für Materialforschung und -prüfung, 12200 Berlin, Germany

autor

Léonard F.

• BAM, Bundesanstalt für Materialforschung und -prüfung, 12200 Berlin, Germany

autor

Müller B. R.

• BAM, Bundesanstalt für Materialforschung und -prüfung, 12200 Berlin, Germany

autor

Bruno G.

• BAM, Bundesanstalt für Materialforschung und -prüfung, 12200 Berlin, Germany

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