Investigation of Bending Strength of Honeycomb Sandwich Structures with Different Cell Diameters Produced by 3D Printer

Yıl 2022, Cilt: 37 Sayı: 2, 459 - 470, 30.06.2022

Serdar Kaveloğlu , Şemsettin Temiz Oğuz Doğan , Muhammed Safa Kamer

https://doi.org/10.21605/cukurovaumfd.1146410

Cited By: 3

Öz

Honeycomb structures are frequently used in many constructions today. For this reason, the investigation of the mechanical properties of products produced from honeycomb structures is a current issue. In this study, the bending strengths of sandwich structures with honeycomb core produced with a three-dimensional printer using ABS and PLA materials were experimentally investigated. In the experiments, the effect of the cell diameter change of the honeycomb core on the bending strength was investigated experimentally in the sandwich structures. For this purpose, experiments were carried out for three different cell diameters. A total of eighteen three-point bending tests were applied, with each experiment repeated three times. In addition, positioning equipment has been specially designed and produced to increase the reliability of the experiments. As a result of the experiments carried out, force-elongation curves were obtained. It has been determined that the samples produced from PLA material are more durable than ABS samples. In addition, it was determined that the samples with a cell diameter of 9 mm had the highest strength, while the samples with a cell diameter of 12 mm had the lowest strength for both materials.

Anahtar Kelimeler

Additive manufacturing method, 3D printer, Flexural test, Honeycomb structures, Different cell diameters, ABS, PLA

3 Boyutlu Yazıcı ile Üretilen Farklı Hücre Çaplarındaki Bal Peteği Sandviç Yapıların Eğme Dayanımlarının İncelenmesi

Öz

Bal peteği yapılar günümüzde birçok konstrüksiyon içerisinde sıklıkla kullanılmaktadır. Bu nedenle bal peteği yapılarından üretilmiş ürünlerin mekanik özelliklerinin araştırılması güncel bir konu olarak karşımıza çıkmaktadır. Bu çalışmada bal peteği çekirdek yapısına sahip, ABS ve PLA malzemeleri kullanılarak üç boyutlu yazıcı ile üretilen sandviç yapıların eğme dayanımları deneysel olarak incelenmiştir. Deneylerde sandviç yapı içerisindeki, bal peteği çekirdek yapısının hücre çapı değişiminin, eğme mukavemeti üzerine etkisi deneysel olarak araştırılmıştır. Bu amaçla üç farklı hücre çapı için deneyler gerçekleştirilmiştir. Her bir deneyin üç kez tekrar edilmesi ile toplamda on sekiz adet üç nokta eğme testi uygulanmıştır. Ayrıca deneylerin güvenilirliğinin artırılması amacıyla özel olarak konumlandırma ekipmanı tasarlanmış ve üretilmiştir. Gerçekleştirilen deneyler sonucunda kuvvet – sehim eğrileri elde edilmiştir. PLA malzemeden üretilen numunelerin ABS numunelere göre daha mukavim olduğu tespit edilmiştir. Ayrıca her iki malzeme için de 9 mm hücre çapına sahip numunelerin en yüksek dayanıma sahip olduğu, 12 mm hücre çapına sahip numunelerin ise en düşük dayanıma sahip olduğu belirlenmiştir.

Anahtar Kelimeler

Eklemeli imalat yöntemi, 3B Yazıcı, Eğme testi, Bal peteği yapılar, Farklı hücre çapı, ABS, PLA

Kaynakça

• 1. HexaPan Honeycomb Uygulamalar. https://www.hexapan.com/tr/uygulamalar (EriĢim Tarihi:10.03.2021).
• 2. He, W., Lu, S., Wang, S., Sun, G., Hu, Z., 2019. Residual Flexural Properties of CFRP Sandwich Structures with Aluminum Honeycomb Cores after Low-Velocity Impact. International Journal of Mechanical Sciences, 161–162, 105026.
• 3. Najafi, M., Ahmadi, H., Liaghat G.H., 2022. Investigation on the Flexural Properties of Sandwich Beams with Auxetic Core. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 44–61.
• 4. Aslan, M., Güler, O., Alver, Ü., 2018. The Investigation of the Mechanical Properties of Sandwich Panel Composites with Different Surface and Core Materials. Pamukkale University Journal of Engineering Sciences, 24(6), 1062–1068.
• 5. Chen, J., He, C., Gu, C., Liu, J., Mi, C., Gui, S., 2014. Compressive and Flexural Properties of Biomimetic Integrated Honeycomb Plates. Materials and Design, 64, 214–220.
• 6. Zhou, M., Xie, J., Chen, J., Liu, C., Tuo, W., 2015. The Influence of Processing Holes on the Flexural Properties of Biomimetic Integrated Honeycomb Plates. Materials and Design, 86, 404–410.
• 7. Tunca, E., Kafalı, H., 2021. Compression and Three-Point Bending Analyzes of Aerospace Sandwich Composites Produced with Polymeric Core Materials using ANSYS. European Journal of Science and Technology, 31(1), 553 – 561.
• 8. Öztürk B., 2020. 3 Boyutlu Yazıcı ile Üretilen Sandviç Yapıların Statik ve Dinamik Yük Altında DavranıĢlarının Ġncelenmesi. Yüksek Lisans Tezi, Bursa Teknik Üniversitesi, 62.
• 9. Kamer, M.S., Temiz, ġ., YaykaĢlı, H., Kaya, A., 2021. Investigation of the Mechanical Properties of Tensile Test Samples Produced in Different Colors and Different Infill Patterns with A 3D Printer. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, 26(3), 829-848.
• 10. Kamer, M.S., Temiz, ġ., 2021. Investigation of the Mechanical Properties of Tensile Test Samples Produced With A 3d Printer Using Different Bed and Nozzle Temperatures with ABS and PLA Filaments. KSU J Eng Sci, 24(4), 341–358.
• 11. Kamer, M.S., Dogan, O., Temiz, ġ., YaykaĢlı, H., 2021. Investigation of the Mechanical Properties of Flexural Test Samples Produced Using Different Printing Parameters with a 3D Printer. Çukurova University Journal of the Faculty of Engineering, 36(3), 835–846.
• 12. Pirouzfar, S., Zeinedini, A., 2021. Effect of Geometrical Parameters on the Flexural Properties of Sandwich Structures with 3D-Printed Honeycomb Core and E-Glass/Epoxy Face-Sheets. Structures, 33, 2724–2738.
• 13. Cheng, Y., Li, J., Qian, X., Rudykh, S., 2021. 3D Printed Recoverable Honeycomb Composites Reinforced by Continuous Carbon Fibers. Composite Structures, 268, 113974.
• 14. Ghanbari-Ghazijahani, T., Kasebahadi, M., Hassanli, R., Classen, M., 2022. 3D Printed Honeycomb Cellular Beams Made of Composite Materials (Plastic and Timber). Construction and Building Materials, 315, 125541.
• 15. Zeng, C., Liu, L., Bian, W., Leng, J., Liu, Y., 2021. Compression Behavior and Energy Absorption of 3D Printed Continuous Fiber Reinforced Composite Honeycomb Structures with Shape Memory Effects. Additive Manufacturing, 38, 101842.
• 16. Dou, H., Ye, W., Zhang, D., Cheng, Y., Huang, K., Yang, F., Rudykh S., 2021. Research on Drop-weight Impact of Continuous Carbon Fiber Reinforced 3D Printed Honeycomb Structure, Materials Today Communications, 29, 102869.
• 17. ASTM-C393/C393M-16, Standard Test Method for Core Shear Properties of Sandwich Constructions by Beam Flexure, 2016.
• 18. UĢun, A., Gümrük, R. 2021. The Mechanical Performance of the 3D Printed Composites Produced with Continuous Carbon Fiber Reinforced Filaments Obtained via Melt Impregnation, Additive Manufacturing, 46, 102112.
• 19. ABS ve PLA Filament KarĢılaĢtırması. https://www.boyutkat.com/3d-yazici-filament/filament-karsilastir/abs-vs-pla-filament-karsilastirmasi/ (EriĢim Tarihi: 15.11.2021).
• 20. Arola, A.M., Kaijalainen, A., Kesti, V., Troive, L., Larkiola, J., Porter, D., 2021. The Effect of Mechanical Behavior on Bendability of Ultrahigh-Strength Steel. Materials Today Communications, 26, 101943.