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All Journal Rekayasa Mesin Jurnal Ilmiah Pangabdhi Jurnal Abdi Insani International Journal of Science, Engineering and Information Technology International Journal Mathla'ul Anwar of Halal Issues Jurnal Polimesin
Mubarok, Khamdi
mpramudia@gmail.com
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Journal : Rekayasa Mesin

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ANALISIS VARIASI INFILL PATTERN TERHADAP KEKUATAN TARIK MATERIAL KOMPOSIT SANDWICH BERLAPIS SERAT KARBON Pramudia, Mirza; Mubarok, Khamdi; Murodah, Nailatul
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.2134

Abstract

Fused Deposition Modeling (FDM) technology plays a significant role in fabricating the core of sandwich composite structures due to its capability to manufacture complex geometries with various infill patterns, enabling the optimization of lightweight and high-strength structures. This study aims to investigate the influence of infill pattern variations on the tensile properties of sandwich composites composed of a PLA core and carbon fiber skins using the hand lay-up method. The infill patterns employed include cubic, gyroid, grid, and honeycomb, each with an infill density of 20%. Specimens were fabricated and assembled according to ASTM D3039 standards, followed by tensile testing to evaluate ultimate tensile strength, elastic modulus, and fracture behavior. The results indicate that the honeycomb pattern achieved the highest tensile strength of 49.85 MPa and stiffness of 1045 MPa, followed by grid (47.44 MPa; 1033 MPa), gyroid (44.75 MPa; 946 MPa), and cubic (43.46 MPa; 945 MPa), establishing honeycomb as the most optimal infill pattern for enhancing mechanical performance.
Co-Authors Afifa, Fitria Hersiana Agung Saputro, Agung Amandha, Yaumil Nurchoir Anisa Anggraini Anwar, Muhammad Nurul Ardiansah, Andhika HADI PERISTIWO, HADI Hairil Budiarto Hakam Muzakki Ibnu Irawan ILHAM CAHYA Izdihar, Dhiaqonita Kautsari Izzudin, Mohammad Nur Khoirun Nuha, Achmad Laksani, Mertiara Ratih Terry Mirza Pramudia Mohamad Mustajib, Mohamad Murodah, Nailatul Syah, Achmad Fachrudin UMI PURWANDARI