Preliminary Study on Mechanical Aspects of 3D-Printed PLA-TPU Composites

Żur, Alicja; Żur, Paweł; Michalski, Piotr; Baier, Annett

doi:10.3390/ma15072364

Cited by 8 publications

(7 citation statements)

References 21 publications

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“…Table 1 shows the main properties of the materials selected in this work. The choice of this pair of materials is due to the wide range of properties that can be reached by varying the material fraction and the compatibility between them, while maintaining rather similar process conditions that are easy to achieve with standard equipment, as confirmed by the literature [11,[33][34][35]. The material distribution and CAM parameters (e.g., infill density and number of perimeters) are closely related to the local stiffness of the part, and they can be defined by functional requirements in the design process.…”

Section: Resultsmentioning

confidence: 99%

“…Recent studies show the effect of the process parameters on the adhesion mechanisms between PLA and TPU, which influences the mechanical properties and is the basis of the material coextrusion [33,35,[45][46][47][48]. In addition to the temperature, the main adhesion mechanisms are related to Van der Waals forces, chemical bonds, wettability, diffusion, and impurities at the boundary [48][49][50][51].…”

Section: Manufacturing and Further Considerationsmentioning

confidence: 99%

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Functionally Graded Additive Manufacturing: Bridging the Gap between Design and Material Extrusion

et al. 2023

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Nowadays, the use of 3D printing is becoming a key process for on-demand and customized manufacturing. One of the most flexible 3D printing techniques is fused deposition modeling (FDM), where the combination of multiple materials was recently introduced. A quantum leap in part design is possible by integrating local variations between materials that allow for expanded functionality to be built into a single part. Therefore, the process of co-extrusion and material mixing is becoming more and more popular. The process of management and design of the engineered part are still complicated, and there are no commercially available tools that follow the process from design to production of these highly engineered products. This paper proposes a methodology to fill this gap and allow any designer to be able to produce multi-material parts by editing a G-code (computer numerical control programming language) with engineered gradients for FDM technology. More specifically, the proposed approach is based on the modification of the G-code according to a volumetric model describing the local combination of two or more materials. This original aspect allows for a wide extension of the current software capabilities. To explain and test the method, a simple test case was investigated, in which two components of an earphone are consolidated and developed gradually by combining polylactic acid and thermoplastic polyurethane. The results show the effectiveness of the proposed approach within the limits of the material coextrusion additive manufacturing process.

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Section: Resultsmentioning

confidence: 99%

Section: Manufacturing and Further Considerationsmentioning

confidence: 99%

Functionally Graded Additive Manufacturing: Bridging the Gap between Design and Material Extrusion

et al. 2023

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“…The static structural and explicit dynamic modules of ANSYS 2022 R1 were initially used to perform FEA simulations on the aforementioned specimens under both static and dynamic loading conditions. Boundary conditions were specified in accordance with the tensile, compression, and flexural analysis for the FEA models, which were created using a 0.5 mm mesh. , The equivalent Von Mises stress and total deformation under tensile circumstances were ascertained by performing static loading conditions on the respective ASTM specimens. Despite the fact that FEA has been used to assess the consistency between the mechanical behavior of experimental and simulation results, the latter is anticipated to evaluate the outcome under ideal circumstances.…”

Section: Methodsmentioning

confidence: 99%

Exploring the Biomedical Potential of PLA/Dysprosium Phosphate Composites via Extrusion-Based 3D Printing: Design, Morphological, Mechanical, and Multimodal Imaging and Finite Element Modeling

Madar Saheb,

Kanagaraj,

Kannan

2023

ACS Appl. Bio Mater.

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The present investigation demonstrates the feasibility of dysprosium phosphate (DyPO4) as an efficient additive in polylactide (PLA) to develop 3D printed scaffolds through the material extrusion (MEX) principle for application in bone tissue engineering. Initially, uniform sized particles of DyPO4 with tetragonal crystal setting are obtained and subsequently blended with different concentrations of PLA to extrude in the form of filaments. A maximum of 20 wt % DyPO4 in PLA matrix has been successfully drawn to yield a defect free filament. The resultant filaments were 3D printed through material extrusion methodology. The structural and morphological analysis confirmed the successful reinforcement of DyPO4 throughout the PLA matrix in all of the 3D printed components. All of the PLA/DyPO4 composites exhibited magnetic resonance imaging and computed tomography contrasting properties, which were dependent on the dysprosium content in the PLA matrix. The detailed mechanical evaluation of the 3D printed PLA/DyPO4 composites ensured good strength accomplished by the reinforcement of 5 wt % DyPO4 in PLA matrix, beyond which a gradual decline in the strength is noticed. Representative volume elements models were developed to realize the intrinsic property of the PLA/DyPO4 composite, and finite element analysis under both static and dynamic loading conditions has been performed to account for the reliability of experimental results.

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“…In automobile car busing was mostly used in suspension system to avoid noise and vibration which improves control of momentum in joints. Alicja ˙Zur et al worked on PLA/TPU composite and shows potential application in car busing 167 …”

Section: Applicationsmentioning

confidence: 99%

Thermoplastic polyurethane for three‐dimensional printing applications: A review

Desai

Sonawane

2023

Polymers for Advanced Techs

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Additive manufacturing is an emerging technology with the advantage of less wastage, fast prototyping with customized designing suitable for a wide range of applications. Three‐dimensional (3D) printing is one of the types of additive manufacturing and various polymers are explored for 3D printing applications. Thermoplastic polyurethane (TPU) is a versatile material that has gained increasing attention in 3D printing applications due to its unique combination of mechanical, thermal, and chemical properties. This review paper provides an overview of the current state‐of‐the‐art in TPU‐based 3D printing, including its characteristics, processing techniques, and mainly its applications. Extensive studies are done in TPU with fused deposition modeling (FDM), multi‐jet fusion (MJF), and selective laser sintering (SLS). The elasticity and flexibility, layer adhesion, tensile strength, and support structure are the parameters that decide the suitability of FDM, SLS, and MJF for TPU 3D printing. The infill density, modification of processing parameters, use of sacrificial materials, addition of perforations or channels, varying the particle size, using a mixture of powders, and so forth. leads to develop the porous structure in the final product. In addition, we have studied blends of TPU with other polymers like acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA), as well as fiber‐reinforced TPU composites for 3D printing applications.

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Preliminary Study on Mechanical Aspects of 3D-Printed PLA-TPU Composites

Cited by 8 publications

References 21 publications

Functionally Graded Additive Manufacturing: Bridging the Gap between Design and Material Extrusion

Functionally Graded Additive Manufacturing: Bridging the Gap between Design and Material Extrusion

Exploring the Biomedical Potential of PLA/Dysprosium Phosphate Composites via Extrusion-Based 3D Printing: Design, Morphological, Mechanical, and Multimodal Imaging and Finite Element Modeling

Thermoplastic polyurethane for three‐dimensional printing applications: A review

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