An experimental study on interfacial fracture toughness of 3-D printed ABS/CF-PLA composite under mode I, II, and mixed-mode loading

Khan, Abdul Samad; Ali, Aaqib; Hussain, G.; Ilyas, Muhammad

doi:10.1177/0892705719874860

Cited by 29 publications

(13 citation statements)

References 30 publications

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“…The properties of these materials can be further increased by the addition of fibres and nanoparticles to achieve improved mechanical, thermal and chemical stability. [11][12][13][14][15][16][17][18] Recent studies have also shown that hybrid metalpolymer AM parts and dual polymer extrusion can further enhance the workability and properties of AM parts. 19,20 In addition to the inclusion of different phases, the properties of AM parts can be further improved by optimising the printing parameters adopted during the fabrication of the parts.…”

Section: Introductionmentioning

confidence: 99%

Effect of loading rates on the in-plane compressive properties of additively manufactured ABS and PLA-based hexagonal honeycomb structures

Joseph

Mahesh

2021

Journal of Thermoplastic Composite Materials

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Honeycomb structures find numerous applications in automotive, aerospace, sports, and other similar engineering fields. Such incorporation is made possible by the excellent crushing resistance and specific energy absorption capabilities. However, manufacturing such structures through conventional processes is highly laborious and expensive. Such a drawback can be largely mitigated by the adoption of additive manufacturing (AM) processes. Consequently, in this study, hexagonal honeycomb structures are subjected to experimental tests to determine their compressive strength under different loading rates. In addition to this, attempts have also been made to evaluate the effect of different materials and the unit cell dimensions on the compressive properties. The test specimens of different wall thicknesses are manufactured by fused deposition modelling (FDM) using PLA and ABS as the base materials. The samples are then subjected to compressive tests using a standard UTM to quantify the effect of the cell geometrical parameters and the loading rate on the overall compressive nature of the structures. The results show that the compression properties are primarily affected by the loading rate, material properties and the cell-wall thickness of the structures. The initial compressive yield stress and plateau stress generally increase up to a given value of loading rate, after which the strength decline. The cell-wall thickness of the structure influences the threshold loading rate. Therefore, this study provides a preliminary understanding of the compressive properties of AM hexagonal honeycomb structures to analyse the prospects for application in real-world engineering applications. It is proposed that such structures find profound applications in structural components of aerospace equipment, automotive parts, sports gear, and other similar areas of interest where high strength and energy absorption are of predominant importance.

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Section: Introductionmentioning

confidence: 99%

Effect of loading rates on the in-plane compressive properties of additively manufactured ABS and PLA-based hexagonal honeycomb structures

Joseph

Mahesh

2021

Journal of Thermoplastic Composite Materials

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“…Both of these filaments had a diameter of 1.75 mm (+0.5 mm). Their properties are listed in Table 1 [ 35 , 36 ]. These materials were purchased from the suppliers.…”

Section: Preliminary Experiments and Methodologymentioning

confidence: 99%

Impact Toughness of Hybrid Carbon Fiber-PLA/ABS Laminar Composite Produced through Fused Filament Fabrication

et al. 2021

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Nowadays, the components of carbon fiber-reinforced polymer composites (an important material) are directly produced with 3D printing technology, especially Fused Filament Fabrication (FFF). However, such components suffer from poor toughness. The main aim of this research is to overcome this drawback by introducing an idea of laying down a high toughness material on the 3D-printed carbon fiber-reinforced polymer composite sheet, thereby making a hybrid composite of laminar structure. To ascertain this idea, in the present study, a carbon-reinforced Polylactic Acid (C-PLA) composite sheet was initially 3D printed through FFF technology, which was then laid upon with the Acrylonitrile Butadiene Styrene (ABS), named as C-PLA/ABS hybrid laminar composite, in an attempt to increase its impact toughness. The hybrid composite was fabricated by varying different 3D printing parameters and was then subjected to impact testing. The results revealed that toughness increased by employing higher layer thickness and clad ratio, while it decreased by increasing the fill density, but remained unaffected due to any change in the raster angle. The highest impact toughness (23,465.6 kJ/m2) was achieved when fabrication was performed employing layer thickness of 0.5 mm, clad ratio of 1, fill density of 40%. As a result of laying up ABS sheet on C-PLA sheet, the toughness of resulting structure increased greatly (280 to 365%) as compared to the equivalent C-PLA structure, as expected. Two different types of distinct failures were observed during impact testing. In type A, both laminates fractured simultaneously without any delamination as a hammer hit the sample. In type B, the failure initiated with fracturing of C-PLA sheet followed by interfacial delamination at the boundary walls. The SEM analysis of fractured surfaces revealed two types of pores in the C-PLA lamina, while only one type in the ABS lamina. Further, there was no interlayer cracking in the C-PLA lamina contrary to the ABS lamina, thereby indicating greater interlayer adhesion in the C-PLA lamina.

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“…The properties such as high dimensional stability, high level of strength, and stiffness at an affordable cost make fiber-reinforced filaments an interesting material that opens new application fields in FDM printing. [18][19][20][21] In literature, continuous carbon fibers have been used as reinforcement materials of FDM printed ABS 22,23 and PLA. 24,25 The mechanical characterization of the printed composites indicated that the bending and tensile strengths were increased by up to 35% and 108%, respectively, in comparison with pure PLA while delamination together with matrix cracking were found as the dominant failure modes.…”

Section: Introductionmentioning

confidence: 99%

“…In literature, continuous carbon fibers have been used as reinforcement materials of FDM printed ABS 22,23 and PLA. 24,25 The mechanical characterization of the printed composites indicated that the bending and tensile strengths were increased by up to 35% and 108%, respectively, in comparison with pure PLA while delamination together with matrix cracking were found as the dominant failure modes.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the shear properties of 3D printed short carbon fiber-reinforced thermoplastic composites

Tanabi

2022

Journal of Thermoplastic Composite Materials

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Short fiber-reinforced 3D printed components are high performance materials with a wide range of potential applications in various industries ranging from aerospace to automotive. Mechanical characterization of 3D printed short carbon fiber polyethylene terephthalate and acrylonitrile butadiene styrene parts are presented under the application of shear load in this study. The anisotropy properties of both composite and polymer materials were investigated by printing samples at two different orientations, using fused deposition modeling (FDM) technique. The fabricated samples were subjected to tensile and shearing loads while 2D digital image correlation (DIC) was used to measure full-field strain on the specimen. The obtained results revealed a noticeable anisotropy in shear properties as the function of printing orientation. Moreover, it found that using carbon fiber-reinforced PET results in higher elastic modulus, tensile, and shear strengths up to 180%, 230%, and 40% compared to ABS.

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An experimental study on interfacial fracture toughness of 3-D printed ABS/CF-PLA composite under mode I, II, and mixed-mode loading

Cited by 29 publications

References 30 publications

Effect of loading rates on the in-plane compressive properties of additively manufactured ABS and PLA-based hexagonal honeycomb structures

Effect of loading rates on the in-plane compressive properties of additively manufactured ABS and PLA-based hexagonal honeycomb structures

Impact Toughness of Hybrid Carbon Fiber-PLA/ABS Laminar Composite Produced through Fused Filament Fabrication

Investigation of the shear properties of 3D printed short carbon fiber-reinforced thermoplastic composites

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