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https://hdl.handle.net/11499/47678
Title: | Investigation on mechanical performances of various cellular structures produced with fused deposition modeling (FDM) | Other Titles: | Eriyik yığma modelleme (EYM) ile üretilen çeşitli hücresel yapıların mekanik performanslarının incelenmesi | Authors: | Ergene, Berkay Yalçın, Bekir |
Keywords: | energy absorption Fused deposition modelling honeycomb mechanical performance re-entrant 3D printers Cellular automata Compression testing Compressive strength Deposition Hardness Honeycomb structures Surface roughness Cellular structure Chiral structures Honeycomb Hybrid structure Mechanical performance Optimum conditions Re-entrant Specific areas Standard tests Test samples Energy absorption |
Publisher: | Gazi Universitesi | Abstract: | In this study, it was aimed to experimentally compare the mechanical properties of the traditional honeycomb structure, which is one of the cellular structures with its own specific area of use with its features such as lightness and load absorption, and the new generation re-entrant, chiral and hybrid structure (re-entrant + honeycomb) with negative Poisson behavior. In this context, standard test samples with honeycomb, reentrant, chiral and hybrid structures were produced with fused deposition modelling (FDM) under optimum conditions by using PLA material and different geometric parameters. Tensile and compression tests, hardness tests and surface roughness measurements were carried out with the specimens that were additively manufactured. According to the results, it was determined that the direction of the unit cells in the cellular structure and the rib thickness affect the energy absorption properties of the cellular structures. While the tensile and compressive strengths of the cellular structures increased with increasing rib thickness, the average Ra value and hardness value were measured as 14 µm and 75 Shore D respectively. Although negative Poisson ratio was observed depending on the amount of deformation in re-entrant, chiral and hybrid structures, positive Poisson behavior was observed in honeycomb structures. © 2023 Gazi Universitesi Muhendislik-Mimarlik. All rights reserved. | URI: | https://doi.org/10.17341/gazimmfd.945650 https://hdl.handle.net/11499/47678 |
ISSN: | 1300-1884 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection TR Dizin İndeksli Yayınlar Koleksiyonu / TR Dizin Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
Files in This Item:
File | Size | Format | |
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10.17341-gazimmfd.945650-1798061.pdf | 3.12 MB | Adobe PDF | View/Open |
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