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Polymers
Volume 12
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10.3390/polym12010246
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Article

Mechanical Characterization of the Plastic Material GF-PA6 Manufactured Using FDM Technology for a Compression Uniaxial Stress Field via an Experimental and Numerical Analysis

by
Jorge Manuel Mercado-Colmenero
1,
Cristina Martin-Doñate
1,*,
Vincenzo Moramarco
2,
Michele Angelo Attolico
2,
Gilda Renna
2,
Moises Rodriguez-Santiago
1 and
Caterina Casavola
2
1
Department of Engineering Graphics Design and Projects, University of Jaen, Campus Las Lagunillas, s/n. Building A3, 23071 Jaen, Spain
2
Dipartimento di Meccanica, Matematica e Management (DMMM), Politecnico di Bari, Viale Japigia, 182–70126 Bari, Italy
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(1), 246; https://doi.org/10.3390/polym12010246
Submission received: 17 December 2019 / Revised: 14 January 2020 / Accepted: 16 January 2020 / Published: 20 January 2020
(This article belongs to the Special Issue Functional Polymers in Additive Manufacturing)
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Abstract

This manuscript presents an experimental and numerical analysis of the mechanical structural behavior of Nylstrong GF-PA6, a plastic material manufactured using FDM (fused deposition modeling) technology for a compression uniaxial stress field. Firstly, an experimental test using several test specimens fabricated in the Z and X-axis allows characterizing the elastic behavior of the reinforced GF-PA6 according to the ISO 604 standard for uniaxial compression stress environments in both Z and X manufacturing orientations. In a second stage, an experimental test analyzes the structural behavior of an industrial part manufactured under the same conditions as the test specimens. The experimental results for the test specimens manufactured in the Z and X-axis present differences in the stress-strain curve. Z-axis printed elements present a purely linear elastic behavior and lower structural integrity, while X-axis printed elements present a nonlinear elastic behavior typical of plastic and foam materials. In order to validate the experimental results, numerical analysis for an industrial part is carried out, defining the material GF-PA6 as elastic and isotropic with constant Young’s compression modulus according to ISO standard 604. Simulations and experimental tests show good accuracy, obtaining errors of 0.91% on the Z axis and 0.56% on the X-axis between virtual and physical models.
Keywords: additive manufacturing; plastic part design; CAD; FDM; numerical simulation; experimental tests additive manufacturing; plastic part design; CAD; FDM; numerical simulation; experimental tests
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MDPI and ACS Style

Mercado-Colmenero, J.M.; Martin-Doñate, C.; Moramarco, V.; Attolico, M.A.; Renna, G.; Rodriguez-Santiago, M.; Casavola, C. Mechanical Characterization of the Plastic Material GF-PA6 Manufactured Using FDM Technology for a Compression Uniaxial Stress Field via an Experimental and Numerical Analysis. Polymers 2020, 12, 246. https://doi.org/10.3390/polym12010246

AMA Style

Mercado-Colmenero JM, Martin-Doñate C, Moramarco V, Attolico MA, Renna G, Rodriguez-Santiago M, Casavola C. Mechanical Characterization of the Plastic Material GF-PA6 Manufactured Using FDM Technology for a Compression Uniaxial Stress Field via an Experimental and Numerical Analysis. Polymers. 2020; 12(1):246. https://doi.org/10.3390/polym12010246

Chicago/Turabian Style

Mercado-Colmenero, Jorge Manuel, Cristina Martin-Doñate, Vincenzo Moramarco, Michele Angelo Attolico, Gilda Renna, Moises Rodriguez-Santiago, and Caterina Casavola. 2020. "Mechanical Characterization of the Plastic Material GF-PA6 Manufactured Using FDM Technology for a Compression Uniaxial Stress Field via an Experimental and Numerical Analysis" Polymers 12, no. 1: 246. https://doi.org/10.3390/polym12010246

APA Style

Mercado-Colmenero, J. M., Martin-Doñate, C., Moramarco, V., Attolico, M. A., Renna, G., Rodriguez-Santiago, M., & Casavola, C. (2020). Mechanical Characterization of the Plastic Material GF-PA6 Manufactured Using FDM Technology for a Compression Uniaxial Stress Field via an Experimental and Numerical Analysis. Polymers, 12(1), 246. https://doi.org/10.3390/polym12010246

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