Finite Element Analysis Study on Lattice Structure Fabricated Recycled Polystyrene from Post-used Styrofoam Waste

Juarez, Chia Zheng Jie; Koay, Seong Chun; Chan, Ming Yeng; Choo, Hui Leng; Pang, Ming; Ong, Thai Kiat

doi:10.1051/matecconf/202133503007

Cited by 4 publications

(4 citation statements)

References 10 publications

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“…AM technologies allow products with complex topology to be manufactured with great freedom but used way less time than traditional methods [1]. It has proved to be an effective substitute for the industries that utilize traditional manufacturing, which is comprised mainly of subtractive and forming processes that require the need for tooling and Design for Manufacturing (DFM) related imperatives to an enormous degree [2].…”

Section: Introductionmentioning

confidence: 99%

Recycling Polymer Blend made from Post-used Styrofoam and Polypropylene for Fuse Deposition Modelling

William

Koay

Chan

et al. 2021

J. Phys.: Conf. Ser.

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Fuse deposition modelling (FDM) has become a revolutionary manufacturing technology as it offers numerous advantages, including freedom of fabrication, mass customisation, fast prototyping, and cost-effectiveness. Thermoplastic material is commonly used as feedstock for FDM process. The current state of material development, the recycled plastic material also can be used as printing material for FDM machine. Expanded polystyrene (EPS) has been extensively used as packaging materials for many industries but rarely be recycled, as its relatively large volume with minimal weight is unconducive for transportation. This research aimed to utilize EPS waste and turn it into FDM feedstock. This research also aims to enhance the properties of recycled polystyrene (rPS) made from EPS waste by blending it with polypropylene (PP). Different ratios of rPS/PP blends were prepared and extruded into FDM filament using filament extruder. The formulated filaments were printed into specimen using FDM machine. This research found the filament made from rPS/PP blends can be printed into specimen with good printing quality if the nozzle temperature controlled at 240° C with 120 % extrusion rate. With this printing parameter, the specimen printed with rPS/PP blend filament exhibit the greatest adhesion between the deposited layers without any visible voids or gaps. Besides, the printed specimen with rPS/PP blends possess lower tensile strength, but higher tensile modulus as compared to the printed specimen with neat rPS. The addition of more PP decreased both tensile strength and modulus of rPS/PP blends. On the other hand, the rPS/PP blends have higher thermal stability as the PP content increased. Overall, the rPS/PP blends filament shows a great potential as a feedstock material for FDM fabrication.

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Section: Introductionmentioning

confidence: 99%

Recycling Polymer Blend made from Post-used Styrofoam and Polypropylene for Fuse Deposition Modelling

William

Koay

Chan

et al. 2021

J. Phys.: Conf. Ser.

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“…A novel study [17,[28][29][30] has revealed that previous works failed to use the mechanical properties of the solid material in numerical simulations; instead, these simulations employed experimental tests on a lattice structure and inverse engineering to determine the mechanical properties of the numerical model. In certain cases, previous studies have also failed to reveal the values used and/or their precedence [31][32][33][34][35][36]. Ruiz de Galarreta et al [37] tested a single strut element under traction to determine the final mechanical properties of a strut lattice structure.…”

Section: Methodsmentioning

confidence: 99%

“…However, the final mechanical properties of the material in the FEM model were not indicated. In the case of Poisson's coefficient, most researchers employ a value between 0.3 and 0.35 for acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA) [7,17,29,34,36,38,39].…”

Section: Methodsmentioning

confidence: 99%

Numerical simulations of gyroid structures under compressive loads

Buil

Cuartero

Ranz

et al. 2023

Mechanics of Advanced Materials and Structures

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Numerical simulations of gyroid structures under compressive loadsNumerical simulations are essential for predicting the mechanical properties of new materials, structures, and final products. In the case of triple periodic minimal surface structures, particularly gyroids, predicting the mechanical behaviors beyond the elastic region is difficult, especially under high strains. This work addresses this issue and introduces a method to predict the mechanical behaviors of gyroid structures using the finite element method. In addition, the mechanical properties of the constitutive material are determined experimentally.Furthermore, different methods are explored, including the use of shell elements, solid elements, and homogenization. Results reveal that homogenization is more suitable for obtaining the properties in the elastic zone, whereas solid models are better for determining the behaviors in the plateau zone and the densification point.

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“…Fused Deposition Modelling (FDM) is one of the most widely used 3D printing methods for end users [4]. FDM is famous among many industries because of easy handling, low cost, and the printed part has high geometric accuracy.…”

Section: Introductionmentioning

confidence: 99%

Recycling Polymer Blend made from Post-used Styrofoam and Polyethylene for Fuse Deposition Modelling

Yap

Koay

Chan

et al. 2021

J. Phys.: Conf. Ser.

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Styrofoam is widely used as packaging material for many applications like home furniture and electrical appliance. Styrofoam is a non-biodegradable material which its disposal causes serious environment issues. This research demonstrates an alternate recycling method of Styrofoam waste by converting it into 3D printing filament for Fused Deposition Modelling (FDM). For this research, the recycled polystyrene (rPS) was extracted from Styrofoam waste and blended with low-density polyethylene (LDPE), then extruded into filament using a filament extruder. The formulated rPS/LDPE blend with different blend ratio exhibited a good printability when the printing temperature and extrusion rate fixed at 240°C and 120%. However, the tensile strength of printed specimens with rPS/LDPE blends were lower than printed specimen with neat rPS. The tensile strength and modulus of printed specimens with rPS/LDPE were decreased due to the increase of LDPE content. The decrease of tensile strength mainly caused by the incompatibility between the rPS and LDPE phases. However, the addition of more LDPE content in the blend enhanced the ductility of rPS/LDPE blends. Furthermore, the increase of LDPE content also increased the thermal stability of rPS/LDPE blends. Overall, the rPS/LDPE blend is a potential alternate material for producing FDM filament.

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Finite Element Analysis Study on Lattice Structure Fabricated Recycled Polystyrene from Post-used Styrofoam Waste

Cited by 4 publications

References 10 publications

Recycling Polymer Blend made from Post-used Styrofoam and Polypropylene for Fuse Deposition Modelling

Recycling Polymer Blend made from Post-used Styrofoam and Polypropylene for Fuse Deposition Modelling

Numerical simulations of gyroid structures under compressive loads

Recycling Polymer Blend made from Post-used Styrofoam and Polyethylene for Fuse Deposition Modelling

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