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Mechanical properties assessment of a 3D printed composite under torsional and perpendicular stress

João Fiore Parreira Lovo (Departamento de Engenharia Mecânica, Escola de Engenharia de Sao Carlos, Universidade de Sao Paulo, Sao Carlos, Brazil)
Vicente Gerlin Neto (Campus Birigui, Instituto Federal de Educacao Ciencia e Tecnologia de Sao Paulo, Sao Paulo, Brazil and Departamento de Engenharia Mecânica, Faculdade de Engenharia – Câmpus de Bauru, Universidade Estadual Paulista Julio de Mesquita Filho, Bauru, Brazil)
Lucas Pereira Piedade (Departamento de Física, Faculdade de Ciências – Câmpus de Bauru, Universidade Estadual Paulista Júlio de Mesquita Filho, Bauru, Brazil)
Renan Cesar Massa (Mechanical Engineering Department, Faculdade de Engenharia – Câmpus de Bauru, Universidade Estadual Paulista Júlio de Mesquita Filho, Bauru, Brazil)
Carlos Alberto Pintão (Departamento de Física, Faculdade de Ciências – Câmpus de Bauru, Universidade Estadual Paulista Júlio de Mesquita Filho, Bauru, Brazil)
Cesar Renato Foschini (Department of Mechanical Engineering, Bauru School of Engineering, Sao Paulo State University – UNESP, Bauru, Brazil)
Carlos Alberto Fortulan (Departamento de Engenharia Mecânica, Escola de Engenharia de Sao Carlos, Universidade de Sao Paulo, Sao Carlos, Brazil)

Rapid Prototyping Journal

ISSN: 1355-2546

Article publication date: 1 July 2022

Issue publication date: 2 January 2023

96

Abstract

Purpose

This paper aims to evaluate the resin infiltration influence on the mechanical properties of components 3D printed by the material extrusion-based additive manufacturing (AM), also known as fused deposition modeling and commonly uses the acrylonitrile butadiene styrene (ABS) as depositing material. Improvements in their mechanical properties are desirable due failure resulting from the extrusion process. In this way, resin infiltration is considered a candidate solution to enhance 3D printed components’ strength.

Design/methodology/approach

The mechanical properties of AM samples produced with and without the resin infiltration were assessed under torsion, tensile and flexural stresses. Torsional tests are rarely found applied for this case, an alternative torsion test developed by one of the authors was used. The torsion modulus (G) is obtained without the Poisson’s ratio, which is usually unknown for recently made composites. Scanning electron microscopy was also done to verify the resin infiltration on the samples.

Findings

Results demonstrated that the resin infiltration on ABS can improve the mechanical properties of samples compared to non-infiltrated. The tensile and bending strength increased more than 6%. Both Young’s and torsion modulus also presented a significant increase. The samples did not present any considerable change in their weight property.

Originality/value

This paper discusses on resin infiltration on print ABS, as to produce a composite material, enhancing ABS properties without gaining weight. This paper also used the torsion modulus instead of the common approach of bringing only tensile and flexure strength.

Keywords

Acknowledgements

This work was supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) and The São Paulo Research Foundation, FAPESP (Grant No. 2019/20000–1).

Citation

Lovo, J.F.P., Gerlin Neto, V., Piedade, L.P., Massa, R.C., Pintão, C.A., Foschini, C.R. and Fortulan, C.A. (2023), "Mechanical properties assessment of a 3D printed composite under torsional and perpendicular stress", Rapid Prototyping Journal, Vol. 29 No. 1, pp. 1-8. https://doi.org/10.1108/RPJ-03-2022-0067

Publisher

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Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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