Moisture-induced changes in the mechanical behavior of 3D printed polymers

Banjo, Adedotun D.; Agrawal, Vinamra; Auad, Marı́a L.; Celestine, Asha‐Dee N.

doi:10.1016/j.jcomc.2022.100243

Cited by 49 publications

(24 citation statements)

References 60 publications

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“…However, as observed the humidity was suspected to affect the printed structures to be more rigid and increase the brittleness behavior of the parts. 54 Therefore, the observation of mechanical properties, pressure, maximum peak crushing force (PCF), and instantaneous crushing force varied according to the structure studied. Additionally, the re-entering deformation process generated the auxetic properties well, which is different in each structure.…”

Section: Discussionmentioning

confidence: 99%

Lattice structures with a negative Poisson’s ratio: Energy absorption assessment

Munyensanga,

Eddahchouri,

Lamnawar

et al. 2024

Cellular Polymers

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Lattice structures nowadays have gained a peak in research. Inspired by the honeycomb structure and fishbone, this study investigated lattice structures that can provide auxetic behavior and store maximum energy absorption during deformation mode. From that, the study involved designing and producing different modified lattices based on the honeycomb’s structure and the fishbone’s perspective. The specimens were 3D printed within fused filament fabrication techniques within the additive manufacturing platform of Euromed University of Fes. The conception, production, mechanical testing, and simulation have been employed to get optimum data analysis of the mechanical properties of the designed structures. The results observed under quasi-dynamic compression did not show significant densification behavior; but, the auxetic behavior was seen in all structures, while some suddenly collapsed. The experimental and numerical analysis demonstrated similar deformation behavior and strong agreement in their respective results. Nevertheless, some discrepancies in mechanical values were observed, with a relative percentage error of approximately 1% for both methods. Consequently, owing to the enhanced energy absorption observed in the V2 and V3 structures, it is evident that these modifications hold promise for optimizing the performance of these metamaterials in various practical applications.

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Section: Discussionmentioning

confidence: 99%

Lattice structures with a negative Poisson’s ratio: Energy absorption assessment

Munyensanga,

Eddahchouri,

Lamnawar

et al. 2024

Cellular Polymers

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“…For better weathering properties, lower value of LT is beneficial as it reduces voids and gaps between layers. [ 9–11,14,15 ] This avoids UV rays, water or moisture to entrap in it, which restricts the oxidation reaction. (d) PS is insignificant parameter in both the cases due to much less contribution as compared to other parameters.…”

Section: Discussionmentioning

confidence: 99%

“…Several researchers are focused on identifying the suitable polymer material that can be sustained under the various outdoor environmental conditions (UV exposure, moisture, heat and mechanical loading). [ 10–16 ]…”

Section: Introductionmentioning

confidence: 99%

Optimization of fused filament fabrication process parameters for mechanical responses of weather‐resistant polymer (acrylonitrile styrene acrylate)

Gawali

Jain

2022

Polymer Engineering & Sci

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Additively manufactured polymeric products for automotive, aerospace, and biomedical applications are usually intended for service in an outdoor environment with high mechanical loading conditions. The strength and sustainability of the products can be significantly degraded due to the outdoor environmental conditions such as UV light, moisture, heat, and so forth. In this research work, a novel weather‐resistant polymer (WRP) material, that is, acrylonitrile styrene acrylate (ASA), has been studied. Furthermore, this work aims to study the effect of process parameters and enhance the strength of WRP (ASA) specimens using the FFF process. The optimized process parameters, that is, build orientation (BO), extrusion temperature (ET), layer thickness (LT), and printing speed (PS), were identified based on the tensile and flexural strength using the Taguchi technique and statistical analysis. The best tensile and flexural strengths for the specimen were achieved at both orientations (XYZ and ZXY) TS: 255°C ET, 0.14 mm LT, 50 mm/s PS; and FS: 245°C ET, 0.28 mm LT, 50 mm/s PS, respectively. Regression model was developed to investigate the correlation between the process parameters with tensile and flexural strength. A validation test confirmed the findings, and the error between the actual and predicted values is less than ±10%.

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“…Polylactic acid displayed negligible mechanical property degradation after immersion at 21 °C but showed substantial physical degradation after being immersed in water at 70 °C for 7 days, but electrical and dielectric properties were not addressed [19]. This also proves that electrical and dielectric properties are not investigated enough.…”

Section: Literature Surveymentioning

confidence: 96%

Properties degradation of 3D printed insulators in maritime and indoor environments

Kuzmanić,

Vujović,

Petković

et al. 2024

Materialwissenschaft Werkst

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With the advances in additive manufacturing, there is the idea of using 3D printers to produce spare parts in isolated systems such as ships, oceangoing vessels, warships, spacecraft, isolated stations, and so on. However, it raises the question of the reliability of such spare parts. One area that has not been explored much is the aging of electrical and dielectric properties, which could reveal weaknesses of 3D‐printed spare parts for use in electrical and automation systems. Therefore, the paper aims to investigate the change in resistance and dielectric constant. The results show that these changes could increase the probability of discharge and have serious consequences for electrical and automation systems.

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Moisture-induced changes in the mechanical behavior of 3D printed polymers

Cited by 49 publications

References 60 publications

Lattice structures with a negative Poisson’s ratio: Energy absorption assessment

Lattice structures with a negative Poisson’s ratio: Energy absorption assessment

Optimization of fused filament fabrication process parameters for mechanical responses of weather‐resistant polymer (acrylonitrile styrene acrylate)

Properties degradation of 3D printed insulators in maritime and indoor environments

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