| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Spörk, Martin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2022Mechanical properties of additively manufactured polymeric implant materials in dependence of microstructure, temperature and strain-rate
- 2020Using Compliant Interlayers as Crack Arresters in 3-D-Printed Polymeric Structurescitations
- 2019Optimisation of the interfacial bonding in polypropylene filled with different types of glass spheres produced by extrusion-based additive manufacturing
- 2019Mechanical Recyclability of Polypropylene Composites Produced by Material Extrusion-Based Additive Manufacturingcitations
- 2019Erhöhung der Bruchzähigkeit durch Multischichtaufbau
- 2018Adhesion of standard filament materials to different build platforms in material extrusion additive manufacturing
- 2018Polypropylene Filled With Glass Spheres in Extrusion‐Based Additive Manufacturingcitations
- 20173D printing conditions determination for feedstock used in fused filament fabrication (FFF) of 17-4PH stainless steel parts
- 2017Shrinkage and Warpage Optimization of Expanded-Perlite-Filled Polypropylene Composites in Extrusion-Based Additive Manufacturingcitations
- 2017Effect of the printing bed temperature on the adhesion of parts produced by fused filament fabricationcitations
- 2016Bonding Forces in Fused Filament Fabrication
- 2016Haftungsvorhersage und Haftungsverbesserung im Fused Filament Fabrication (FFF) Prozess
- 2016Special Materials and Technologies for Fused Filament Fabrication
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article
Using Compliant Interlayers as Crack Arresters in 3-D-Printed Polymeric Structures
Abstract
The aim of this study is to show the influence of using compliant interlayers as crack arresters for three-dimensional (3-D)-printed polymeric structures. To investigate the effectiveness of compliant interlayers, specimens consisting of a stiff and brittle matrix and thin compliant interlayers were printed. The results of these polymeric composites were compared to pure matrix material samples. To generate specimens, a commercially available material extrusion-based desktop 3-Dprinter was used. Additively manufactured samples were tested in both impact as well as fracture mechanical tests. The application of a compliant interlayer as crack arrester showed high potential in both types of test. Instrumented Charpy impact tests according to EN ISO 179-2 revealed an increase of notched impact strength from 5.0 ± 0.1 kJm−2 to 25 kJm−2 (energy up to Fmax) and 136 ± 2.6 kJm−2 (total energy during testing), respectively. This indicates an increase of roughly 725% and 2,720%, while the maximum force during testing remained almost unchanged at approximately 200 N. Interestingly, the exact position as well as the number of compliant interlayers did not show a significant influence on the results. Therefore, tests that are more detailed were conducted on specimens including only a single interlayer. Further tests consisted of J-integral testing on specimens with aforementioned single compliant interlayers. Crack resistance (J-R curves) were generated using the multi-specimen approach and evaluation according to the protocol of the European Structural Integrity Society. Although a special data-shifting procedure has to be applied to interpret results more clearly, J-integral values showed a significant increase of 250 % at the interface between materials compared to the pure matrix material.