Perforation resistance of some materials in 3D printed parts

Perforation resistance of some materials in 3D printed parts

NICOLAU Mihaela, HRITUC Adelina, MIHALACHE Marius-Andrei, NAGÎT Gheorghe, DUȘA Petru, CRᾸCIUN Elisaveta, MUNTEANU Adriana, DODUN Oana, SLATINEANU Laurențiu

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Abstract. Sometimes, for various reasons, some parts manufactured by 3D printing need to have high perforation resistance. In such situations, it is necessary to know the perforation resistance values of the materials incorporated in the parts. In principle, conical tip penetrators are allowed to fall under their weight on the test sample material to be investigated, which allows the conical tip to penetrate and advance into the sample material. A finite element modeling allowed obtaining some information about the behavior of the material during the perforation action. Perforation resistance testing equipment has been designed to use conical tips and different heights from which the penetrator is released. Thus, it became possible to highlight the influence of some input factors in the testing process on the diameter of the hole generated by the penetrator in the thermoplastic polyurethane-type material of the test sample. As input factors, the weight of the penetrator, the drop height of the penetrator, and the thickness of the test sample were considered. The mathematical processing of the experimental results allowed the establishment of some empirical mathematical models, which highlight the influence exerted by the three input factors on the value of the considered output parameter. It was confirmed that as the penetrator weight and drop height increase, the diameter of the hole generated in the sample material increases. In contrast, the test sample thickness exerts the opposite effect.

Perforation Resistance, Testing Equipment, 3D Printing, Finite Element Modeling, Experimental Test Empirical Mathematical Model

Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: NICOLAU Mihaela, HRITUC Adelina, MIHALACHE Marius-Andrei, NAGÎT Gheorghe, DUȘA Petru, CRᾸCIUN Elisaveta, MUNTEANU Adriana, DODUN Oana, SLATINEANU Laurențiu, Perforation resistance of some materials in 3D printed parts, Materials Research Proceedings, Vol. 41, pp 2514-2523, 2024


The article was published as article 277 of the book Material Forming

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