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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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Ayoub, Georges
Processes and Engineering in Mechanics and Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Benchmarking the Tensile Properties of Polylactic Acid (PLA) Recycled Through Fused Granule Fabrication Additive Manufacturing
- 2023System Identification of Fused Filament Fabrication Additive Manufacturing Extrusion and Spreading Dynamics
- 2020Modeling the visco-hyperelastic–viscoplastic behavior of photodegraded semi-crystalline low-density polyethylene filmscitations
- 2020Effect of UV-aging on the mechanical and fracture behavior of low density polyethylenecitations
- 2018Effect of UV Ageing on the fatigue life of bulk polyethylenecitations
- 2018Effect of UV Ageing on the fatigue life of bulk polyethylenecitations
- 2016Microstructural observations and tensile fracture behavior of FSW twin roll cast AZ31 Mg sheetscitations
- 2016Mechanical, microstructural and fracture properties of dissimilar welds produced by friction stir welding of AZ31B and Al6061citations
- 2015Observations of the mechanical response and evolution of damage of AA 6061-T6 under different strain rates and temperaturescitations
- 2014A two-phase hyperelastic-viscoplastic constitutive model for semi-crystalline polymers: Application to polyethylene materials with a variable range of crystal fractionscitations
- 2012Fatigue life prediction of rubber-like materials under multiaxial loading using a continuum damage mechanics approach: Effects of two-blocks loading and R ratiocitations
- 2011Effects of crystal content on the mechanical behaviour of polyethylene under finite strains: Experiments and constitutive modellingcitations
- 2011A continuum damage model for the high-cycle fatigue life prediction of styrene-butadiene rubber under multiaxial loadingcitations
- 2010Modelling large deformation behaviour under loading–unloading of semicrystalline polymers: Application to a high density polyethylenecitations
- 2008Experimental study of chemo-mechanical response of amorphous poly(lactic acid) films exposed to UV irradiation
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document
Benchmarking the Tensile Properties of Polylactic Acid (PLA) Recycled Through Fused Granule Fabrication Additive Manufacturing
Abstract
To progress toward a circular economy of thermoplastic polymers, the adoption of 3D printers to make functional articles can facilitate distributed recycling. To this end, the mechanical degradation of polymers through multiple recycling cycles must be quantified. This work presents a procedure and benchmark dataset of tensile property degradation for polylactic acid (PLA) feedstock in multiple recycling passes with a fused granule fabrication process. To establish recycling with minimal processing (shredding and sieving), modifications were required to the granule feeding hopper of the 3D printer. Two distinct orientations were chosen to obtain tensile test coupons. These coupons were die-cut from machined 3D printed rectangular cross-section tubes, with one orientation along the bead (0°) and the other perpendicular to it (90°). Tensile properties are presented for 3D printed virgin material and one, two, three, and four passes of recycling. In terms of print orientation, the results indicate that samples pulled at 0° and 90° exhibited similar mechanical properties. However, there was an average decrease of 3.1% in ultimate tensile strength and a 1.7% decrease in elastic modulus for the samples along 90° orientation for all recycling passes. The samples along 0° demonstrated a 13.7% higher strain at fracture compared to those along 90°. Regarding the number of recycling passes, the findings suggest that the mechanical characteristics of PLA remain largely unaffected even after undergoing four recycling cycles. However, when the material is pulled in the direction of the bead, a 3.09% decrease in ultimate tensile strength is observed in the fourth recycling pass. The elastic modulus and strain at fracture did not exhibit a clear trend. It is important to note that the testing results display some variability, which can be attributed to a combination of stochasticity in the printing process and the preparation procedure employed.