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

被引：22

作者：

Schob, Daniela ^{[1
]}

Sagradov, Ilja ^{[1
]}

Roszak, Robert ^{[1
,4
]}

Sparr, Holger ^{[1
]}

Franke, Rainer ^{[1
]}

Ziegenhorn, Matthias ^{[1
]}

Kupsch, Andreas ^{[2
]}

Leonard, Fabien ^{[2
]}

Mueller, Bernd R. ^{[2
]}

Bruno, Giovanni ^{[2
,3
]}

机构：

[1] Brandenburg Univ Technol Cottbus Senftenberg, Univ Pl, D-01968 Senftenberg, Germany

[2] Bundesanstalt Mat Forsch & Prufung, BAM, Inter Eichen 87, D-12205 Berlin, Germany

[3] Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 25, D-14476 Potsdam, Germany

[4] Poznan Univ Tech, PLM Sklodowskiej Curie 5, PL-60965 Poznan, Poland

来源：

ENGINEERING FRACTURE MECHANICS | 2020年 / 229卷

关键词：

3D printing Polyamide 12; Chaboche model; GTN model; Material and damage behaviour; X-ray refraction; computed tomography; X-RAY REFRACTION; CERAMICS; PLASTICITY; EVOLUTION; POROSITY; MODELS;

D O I：

10.1016/j.engfracmech.2019.106841

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

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.

引用

页数：13

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