Study on flexural and tensile behavior of PLA, ABS and PLA-ABS materials

Dhinesh, S.K.; Arun, Prakash S.; Senthil, Kumar K.L.; Megalingam, A.

doi:10.1016/j.matpr.2020.03.546

Cited by 43 publications

(24 citation statements)

References 12 publications

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“…Flexural and tensile behavior of PLA, ABS and PLA-ABS materials were reported by Dhinesh et al (2020) [15]. They focus on the ultimate tensile and flexural strengths accounting various blend ratio of aforementioned at an infill density of 50% for all specimens.…”

Section: Introductionmentioning

confidence: 94%

Insights into Mechanical and Thermal Properties of Additively Manufactured PLA Samples Triggered by Automotive Industry Demands

Motoc¹,

Drăghicescu²,

Florea³

et al. 2021

Mater. Plast.

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Paper explores the influence of the infill density (%), as a process parameter in additive manufacturing (3D printing), upon the mechanical (tensile, impact) and thermo-physical properties of PLA samples. The results indicated degradation of both tensile strengths and moduli with decrease of samples� relative density from 100% to 25% with 49.9% and 42.0%, respectively. Similar behaviour holds on impact strength values that degrades with 56.0% for the samples printed using a 25% infill density. The Young�s modulus variation with relative density values was approximated using a 3rd order polynomial function, in accordance with the expression for closed-cell thick edge rhombus cellular structures. All PLA samples revealed small difference on their coefficients of linear thermal expansion, irrespective of their infill densities, with a decrease of 6.34% in the lowest relative density value specimens, indicating enhanced stability within selected temperature range. Glass transition temperatures were approximately located at 65�C whereas cold-crystallization around 80�C, thus unaffected by selected process parameter.

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Section: Introductionmentioning

confidence: 94%

Insights into Mechanical and Thermal Properties of Additively Manufactured PLA Samples Triggered by Automotive Industry Demands

Motoc¹,

Drăghicescu²,

Florea³

et al. 2021

Mater. Plast.

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show abstract

“…The material extrusion process, which is mainly popularized by the fused deposition modeling (FDM) process, is based on the extrusion of molten filament being deposited, cooled, and solidified in a layer-by-layer manner to form a three-dimensional part [ 1 , 2 ]. The two most commonly used materials in the ME process are amorphous polymers acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA) [ 3 , 4 , 5 , 6 , 7 ]. The potential of application of the ME process has grown beyond prototyping and has been studied in several important industries such as automotive and aerospace, electronics, pharmaceutical, medical, dentistry, and water harvesting [ 8 , 9 , 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…In order to obtain the desired properties and functional materials for a ME process, several methods have been studied such as the inclusion of fillers into polymer matrix [ 22 , 25 , 26 ] and melt blending of different materials [ 7 , 27 , 28 ]. The inclusion of iron oxide and carbon nanotubes into polymers was reported to obtain desired magnetic and conductivity properties, respectively [ 20 , 22 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Investigation of Deposition Characteristics of PLA on an ABS Plate Using a Material Extrusion Process

et al. 2021

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Three-dimensional prototypes and final products are commonly fabricated using the material extrusion (ME) process in additive manufacturing applications. However, these prototypes and products are limited to a single material using the ME process due to technical challenges. Deposition of plastic on another dissimilar plastic substrate requires proper control of printing temperature during an ME process due to differences in melting temperatures of dissimilar plastics. In this paper, deposition of PLA filament on an ABS substrate during an ME process is investigated using finite element analysis. A heat transfer finite element (FE) model for the extrusion process is proposed to estimate the parameters of the ME machine for the formulation of a heat flux model. The effects of printing temperature and the stand-off distance on temperature distributions are investigated using the proposed FE model for the extrusion process. The heat flux model is implemented in a proposed heat transfer FE model of single bead deposition of PLA on an ABS plate. From this FE model of deposition, temperature histories during the ME deposition process are estimated. The results of temperature histories are compared with experiments. Using the calibrated FE model, a proper heating temperature of ABS for deposition of PLA is evaluated.

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“…The effects of the reinforcements were also remarked in (Ferreira et al, 2017) where PLA was reinforced with short carbon fibers. ABS and PLA were the most commonly used filaments in 3D FDM printing for the study conducted in (Dhinesh et al, 2020): blends of PLA and ABS were produced in various compositions (20% ABS and 80% PLA; 50% ABS and 50% PLA; 80% ABS and 20% PLA) and they were tested for their resistance against tensile and flexural loads. Lanzotti et al (2019) compared virgin and recycled PLA in terms of mechanical properties and they concluded that 3D printing with recycled PLA may be a viable option.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Comparison for Compression of PLA Specimens Printed in In-Plane and Out-of-Plane Directions

Brischetto¹,

Torre²

2020

American Journal of Engineering and Applied Sciences

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The present work proposes an experimental comparison between the in-plane and out-of-plane compressive behaviors of 3D printed PolyLactic Acid (PLA) specimens. These specimens are produced via the Fused Deposition Modeling (FDM) technique by using two different printing directions: the first printing direction in the xz plane allows experimental compression tests in the out-of-plane direction; the second printing direction in the xy plane allows experimental compression tests in the in-plane direction. The specimens are more rigid in the out-of-plane direction than in the in-plane direction. In the first case, a bigger linear compressive Young modulus has been found and both maximum stress and proportional limit stress were determined. In the second case, the linear compressive Young modulus is smaller and the specimens are less rigid but at the same time more resistant: in fact, no maximum stress and proportional limit stress have been obtained because the test machine has reached the maximum applicable load. This research demonstrates as the compressive behavior of 3D FDM printed polymeric elements depends on the printing and test directions and this feature is fundamental when such elements will be used for structural applications. The experimental tests performed in the present paper are accompanied by statistical and capability analyses for the dimensional parameters and for the mechanical properties in order to also evaluate the stability of the production process and the validity ranges for the mechanical characteristics.

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Study on flexural and tensile behavior of PLA, ABS and PLA-ABS materials

Cited by 43 publications

References 12 publications

Insights into Mechanical and Thermal Properties of Additively Manufactured PLA Samples Triggered by Automotive Industry Demands

Insights into Mechanical and Thermal Properties of Additively Manufactured PLA Samples Triggered by Automotive Industry Demands

Numerical Investigation of Deposition Characteristics of PLA on an ABS Plate Using a Material Extrusion Process

An Experimental Comparison for Compression of PLA Specimens Printed in In-Plane and Out-of-Plane Directions

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