Design of FDM 3D printed polymers: An experimental-modelling methodology for the prediction of mechanical properties

Garzon-Hernandez, S.; Garcia‐Gonzalez, Daniel; Jérusalem, Antoine; Árias, A.

doi:10.1016/j.matdes.2019.108414

Cited by 249 publications

(129 citation statements)

References 25 publications

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“…When modeling the properties of samples, considerable attention should be paid to the height of the material printed by the FDM method. In the future, this will result in changes in the values obtained during mechanical tests [41,51]. Figure 11 shows how to measure and sum up the empty spaces in the given sample.…”

Section: Resultsmentioning

confidence: 99%

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The Study of Physico-Mechanical Properties of Polylactide Composites with Different Level of Infill Produced by the FDM Method

Gaweł

Kuciel

2020

Polymers

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The aim of this study was to evaluate the changes in physical-mechanical properties of the samples manufactured by 3D printing technology with the addition of varying degrees of polylactide (PLA) infill (50, 70, 85 and 100%). Half of the samples were soaked in physiological saline. The material used for the study was neat PLA, which was examined in terms of hydrolytic degradation, crystallization, mechanical strength, variability of properties at elevated temperatures, and dissipation of mechanical energy depending on the performed treatment. A significant impact of the amount of infill on changeable mechanical properties, such as hydrolytic degradation and crystallization was observed. The FDM printing method allows for waste–free production of light weight unit products with constant specyfic strength.

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Section: Resultsmentioning

confidence: 99%

“…Garzon-Hernandez et al showed that layer heights have great importance in modeling material properties. It is associated with the occurrence of voids between the layers of the material, which directly affects the strength properties [ 41 ].…”

Section: Methodsmentioning

confidence: 99%

The Study of Physico-Mechanical Properties of Polylactide Composites with Different Level of Infill Produced by the FDM Method

Gaweł

Kuciel

2020

Polymers

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“…The nozzle temperature is set to be 200 • C and the bottom plate 60 • C. The CAD models of the samples are first created by Inventor 2019 and then input into the 3D printer software Simplify3D for printing path planning. Single filament is used for each strut to avoid strength or stiffness reduction and poor connection of adjacent filaments, which is commonly observed in traditional multi-filaments FDM process [37]. Single filament process can be guaranteed by the reasonable settings of nozzle diameter and extrusion rate.…”

Section: Sample Preparationmentioning

confidence: 99%

A Novel Precipitate-Type Architected Metamaterial Strengthened via Orowan Bypass-Like Mechanism

Yan

et al. 2020

Applied Sciences

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The objective of the study is to investigate the strengthening mechanism of embedded meta-precipitates in the design of architected metamaterials. Four precipitate-type architected metamaterials are designed and prepared by fused deposition modelling (FDM). The difference of mechanical properties and deformation mode of these structures is analyzed. The strengthening effect of the introduced meta-precipitates is then compared with Orowan bypass strengthening mechanism. The similarities and discrepancies of metallurgical hardening principles and that found in architected metamaterials are established. It is found that due to the introduction of embedded meta-precipitates, the deformation of the structure changes significantly from diagonal crushing to a meander route, thus improves the mechanical properties and energy absorption abilities. The hindering effect and the influence of volume fraction of meta-precipitates is similar to Orowan bypass mechanism.

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“…Recent studies showed the possibility to use recycled PET for 3D print, whose properties were found better compared to virgin PET. The recycling of PET showed, in fact, a potential as an alternative filament for 3D printing [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

3D Printing of Polymer Waste for Improving People’s Awareness about Marine Litter

Ferrari¹,

Corcione²,

Montagna³

et al. 2020

Polymers

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This work is aimed at proposing demonstrative actions devoted to show reprocessing and recyclability of PET originating from bottles collected from the seaside, in order to increase the consumer awareness on the importance of recycling plastics. To this purpose, collected bottles were washed, cut, grinded, extruded in the form of a thin wire adopting different cooling rates, which leads to a modulation of the crystallinity content. Once having optimized the processing parameters, the extruded wire was used to produce 3D printed samples through the fused deposition modelling (FDM). The changes in the crystalline structure due to the different processing conditions were assessed by DSC and XRD analyses, while rheological tests were performed in order to evaluate any modification in the viscosity of PET after repeated processing cycles. The reduction in thermal stability was confirmed by TGA analysis, which showed a progressive decrease in the degradation temperature as processing cycles increased. Finally, tensile tests highlighted the difference in the mechanical response due to the predominance of the crystalline or amorphous phase in the tested sample. In particular, a good mechanical behavior was found for the 3D-printed samples.

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Design of FDM 3D printed polymers: An experimental-modelling methodology for the prediction of mechanical properties

Cited by 249 publications

References 25 publications

The Study of Physico-Mechanical Properties of Polylactide Composites with Different Level of Infill Produced by the FDM Method

The Study of Physico-Mechanical Properties of Polylactide Composites with Different Level of Infill Produced by the FDM Method

A Novel Precipitate-Type Architected Metamaterial Strengthened via Orowan Bypass-Like Mechanism

3D Printing of Polymer Waste for Improving People’s Awareness about Marine Litter

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