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

Lovo, João Fiore Parreira; Neto, Vicente Gerlin; Piedade, Lucas Pereira; Massa, Renan Cesar; Pintão, Carlos Alberto Fonzar; Foschini, C. R.; Fortulan, Carlos Alberto

doi:10.1108/rpj-03-2022-0067

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…selection of the material, detail orientation relative to the working platform) on the mechanical properties using incremental technologies. Lovo et al (2022) in their studies assessed the effect of resin infiltration on the mechanical properties produced using additive methods. It was found that the resin infiltration on the ABS material improves the mechanical properties of the manufactured details.…”

Section: Introductionmentioning

confidence: 99%

Study of unidirectional torsion of samples with different internal structures manufactured in the MEX process

Budzik

Dziubek

Przeszłowski

et al. 2023

RPJ

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Purpose Manufacturing of products loaded with torque in an incremental process should take into account the strength in relation to the internal structure of the details. Incremental processes allow for obtaining various internal structures, both in the production process itself and as a result of designing a three-dimensional computer-aided design model with programmable strength. Finite element analysis (FEA) is often used in the modeling process, especially in the area of topological optimization. There is a lack of data for numerical simulation processes, especially for the design of products loaded with torque and manufactured additive manufacturing (AM). The purpose of this study is to present the influence of the internal structure of samples produced in the material extrusion (MEX) technology on the tested parameters in the process of unidirectional torsion and to present the practical application of the obtained results on the example of a spline connection. Design/methodology/approach The work involved a process of unidirectional torsion of samples with different internal structures, produced in the MEX technology. The obtained results allowed for the FEA of the spline connection, which was compared with the test of unidirectional torsion of the connection. Findings The performance of the unidirectional torsion test and the obtained results allowed us to determine the influence of the internal structure and its density on the achieved values of the tested parameters of the analyzed prototype materials. The performed FEA of the spline connection reflects the deformation of the produced connection in the unidirectional torsion test. Originality/value There are no standards for the torsional strength of elements manufactured from polymeric materials using MEX methods, which is why the industry often does not use these methods due to the need to spend time on research, which is associated with high costs. In addition, the industry is vary of unknown solutions and limits their use. Therefore, it is important to determine, among others, the strength parameters of components manufactured using incremental methods, including MEX, so that they can be widely used because of their great potential and thus gain trust among the recipient market. In addition, taking into account the different densities of the applied filling structure of the samples made of six prototype materials commonly available from manufacturers allowed us to determine its effect on the torsional strength. The presented work can be the basis for constructors dealing with the design of elements manufactured in the MEX technology in terms of torsional strength. The obtained results also complement the existing material base in the FEA software and perform the strength analysis before the actual details are made to verify the existing irregularities that affect the strength of the details. The analysis of unidirectional torsion made it possible to supplement the material cards, which often refer to unprocessed material, e.g. in MEX processes.

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Section: Introductionmentioning

confidence: 99%

Study of unidirectional torsion of samples with different internal structures manufactured in the MEX process

Budzik

Dziubek

Przeszłowski

et al. 2023

RPJ

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Design and development of alternate layer printing method to reduce the porosity in FDM printing process

Naresh,

Raju,

Parveen

2023

Int J Interact Des Manuf

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Advanced Composite Materials: A Panacea for Improved Electricity Transmission

et al. 2022

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The demand for electricity has increased drastically due to population explosion globally. Unfortunately, supply does not meet the demand. Consequently, the transmission grid becomes overloaded, culminating in frequent power outages. Worse still, the transmission grid lacks adequate maintenance, and this has led to energy crisis in Africa and some parts of Asia. In this review, studies on the strength and weaknesses of existing transmission conductors were conducted. Further studied were natural and artificial phenomena that attack the overhead transmission networks. It was observed that besides inherent conductor defects, overloading, bush fire, short-circuit, harsh weather, and lightning were the factors that ravage the transmission grid. Hence, there is the need to develop more robust conductor materials that can withstand these challenges. The conventional conductors such as all aluminum conductor (AAC) and aluminum conductor steel reinforced (ACSR) are challenged by low operating temperatures, among others. High-temperature low-sag (HTLS) conductors that were invented to tackle these shortcomings certainly have higher ampacity and better thermal rating than the conventional conductors. However, some challenges still devastate them. So, from the study conducted, it was discovered that developing advanced nano-based Al-composite conductor would help in ameliorating the challenges prevalent in the transmission grid. Such an Al-nanocomposite conductor would possess higher ampacity and better thermal stability and would be more durable and cost effective.

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

Cited by 3 publications

References 24 publications

Study of unidirectional torsion of samples with different internal structures manufactured in the MEX process

Study of unidirectional torsion of samples with different internal structures manufactured in the MEX process

Design and development of alternate layer printing method to reduce the porosity in FDM printing process

Advanced Composite Materials: A Panacea for Improved Electricity Transmission

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