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Marius Nicolae Baba,Călin Itu 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.3
This paper reports our study comparing the tensile stress-strain data taken on a fused filament fabricated Nylon 12 material additively manufactured in two distinct directions (i.e., horizontal and vertical), using typical dog-bone shaped specimens of two different crosssection shapes; rectangular and circular. Our objectives in carrying out this investigation were to evaluate the effects of specimen geometry on the elasticity and strength characteristics of the involved PA12 material. One-way ANOVA analysis, Tukey’s HSD, and Games-Howell tests were considered to compare the mean values of two cross-section shapes’ groups (i.e., rectangular vs. circular). The results of ultimate tensile strength obtained for horizontally printed specimens and the elongation at break determined for vertically oriented samples show notable differences at a significance p-level of 0.05.