Vol.24, No.3, 2024, pp. 263–268
https://doi.org/10.69644/ivk-2024-03-0263   

TENSILE PROPERTIES OF PURE PLA POLYMER DEDICATED FOR ADDITIVE MANUFACTURING

Aleksa Milovanović1*, Aleksandar Sedmak2, Milovan Paunić2, Aleksandra Mitrović3,4, Mihajlo Popović2, Miloš Milošević1

1) Innovation Centre of the Faculty of Mechanical Eng., Belgrade, SERBIA

A. Milovanović 0000-0003-4668-8800; M. Milošević 0000-0002-2418-1032, *email: amilovanovic@mas.bg.ac.rs

2) University of Belgrade, Faculty of Mechanical Engineering, Belgrade, SERBIA

A. Sedmak 0000-0002-5438-1895; M. Paunić 0000-0002-4180-9813; M. Popović 0000-0003-3607-9243

3) University Union-Nikola Tesla, Faculty of Information Technology and Engineering, Belgrade, SERBIA

A. Mitrović 0000-0002-5183-6276

4) The Academy of Applied Technical Studies, Belgrade, SERBIA

 

Abstract

This research aims to provide comprehensive data on PLA polymer tensile properties via conducted tensile tests on 100 % infill density specimens (for 0.3; 0.2; 0.1 mm layer height), and all possible lower infill results (i.e., from 90 to 10 %, with a 10 % increment) obtained by interpolation of previous research findings. Tensile tests are performed using dedicated ISO 527-2 standard. Next, the FEM analysis is performed for the 100 % case to verify the FEM model. Thus, the implemented constitutive models of this thermoplastic material and FEM simulations match the experimental data.

Keywords: additive manufacturing, fused deposition modelling, PLA, tensile properties, FEM analysis

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