Finite element modelling and evaluation of mechanical properties of wood-PLA parts manufactured through Fused Filament Fabrication

Durlan, J; Adrover, B; Zandi, Mohammad Damous; Llumà, Jordi; Jerez, R; Travieso, J A

doi:10.1088/1757-899x/1193/1/012094

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…The FEA utilization provides results that coincide with the experimental values in the case of 3D printed wood–PLA [ 9 ]. When the specimen length increases, the error of Young’s modulus decreases.…”

Section: Introductionsupporting

confidence: 53%

Modelling Influence on Bending Behaviour Simulation of the Poly(Lactic Acid) Structures, 3D Printed

2023

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The paper presents the influence of the loading modelling on the simulation process results of the bending behaviour for 3D printed structures. The study is done on structures having different geometries of the cross section, and the type of structure is bar or tube. The materials used for 3D printing are poly(lactic) acid and poly(lactic acid) mixed with glass fibres. The simulation was carried out both based on a simple modelling (schematization) of the bending loading and a complex one. The complex modelling reproduces the bending of 3D printed structures more accurately but is also more time-consuming for the computer-aided design stage. Analysis of the study results shows that in terms of the Von Mises stresses determined by simulation, they are in line with those of the tests but with a slight advantage for the complex modelling compared to the simple one. In terms of deformations, the simulation introduces errors compared to the test results, but the source of the errors is the high elasticity of some 3D printed structures. The study also shows that the high elasticity is due to both the shape of the structure cross section and its arrangement during the bending test.

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Section: Introductionsupporting

confidence: 53%

Modelling Influence on Bending Behaviour Simulation of the Poly(Lactic Acid) Structures, 3D Printed

2023

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“…The stress concentration at this specific location underscores its critical role in determining the structural integrity of the sample under investigation. Such valuable insights from the data shed light on the underlying mechanics and failure mechanisms, enabling us to make informed decisions and implement necessary design improvements to avert potential failures in similar components [74]. The stress analysis at the narrow section, corresponding to the gauge length of the sample, reveals a remarkable convergence between the experimental and theoretical findings.…”

Section: Finite Element Analysismentioning

confidence: 83%

Investigating the Integrity and Failure Characteristics of Deteriorated Polymeric 3D-Printed Components as Candidates for Structural and Construction Applications

Ahmed,

Zaneldin,

El Hassan

2023

Buildings

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This investigation aimed to comprehensively investigate the integrity and failure characteristics of deteriorated polymeric components produced through Fused Filament Fabrication (FFF) technology. The primary focus was to examine the performance of flawed 3D-printed samples, which were purposely designed and 3D-printed to incorporate a range of crack types and geometric features that were initially designed through CAD. This study adopted two main approaches to deal with the cracks by producing the flaws through design and laser processes. These specimens were subjected to destructive testing to gain valuable insights into the FFF-printed components’ performance and failure characteristics under the tensile mode, a significant concern in engineering applications. A Finite Element Analysis (FEA) was employed on the flawed and intact specimens to compare and correlate the experimental results with the simulation results. This study reveals the tested samples’ structural response and failure mechanisms under tensile loading conditions. Exceptionally, it was found that the faulty 3D-printed parts made by the laser process demonstrated less resistance to failure due to disturbing the 3D-printed extruded filament streams. In contrast, the flaws initially produced solely by the 3D printing process showed better resistance to mechanical failure due to the crack-bridging effect. It was observed that there were reductions of 11% and 32% in the failure load of the 3D-printed cracked sample and the laser-cracked samples, respectively, in comparison with the intact one. Additionally, the stress intensity factor showed a decrease of 20% in the laser-cracked sample compared to the 3D-printed one.

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Insights into flexural and impact properties of polymer based materials printed through fused filament fabrication: Progress in the last decade

Khan,

Hassan,

Ahmed

et al. 2024

International Journal of Lightweight Materials and Manufacture

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Finite element modelling and evaluation of mechanical properties of wood-PLA parts manufactured through Fused Filament Fabrication

Cited by 3 publications

References 13 publications

Modelling Influence on Bending Behaviour Simulation of the Poly(Lactic Acid) Structures, 3D Printed

Modelling Influence on Bending Behaviour Simulation of the Poly(Lactic Acid) Structures, 3D Printed

Investigating the Integrity and Failure Characteristics of Deteriorated Polymeric 3D-Printed Components as Candidates for Structural and Construction Applications

Insights into flexural and impact properties of polymer based materials printed through fused filament fabrication: Progress in the last decade

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