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All Journal Jurnal Teknik Mesin Jurnal Terapan Abdimas Majamecha Journal of Welding Technology Malikussaleh Journal of Mechanical Science Technology Jurnal Pengabdian pada Masyarakat Ilmu Pengetahuan dan Teknologi Terintegrasi JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI Sewagati Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Masyarakat: Jurnal Pengabdian Jurnal Pengabdian Kepada Masyarakat
Ahmad Dzulfikri Halimi
Politeknik Negeri Malang
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Influence of Laminate Orientation Ratio on the Tensile Strength of Sisal Fiber Composites Ahmad Kholili Kuthut Widekso; Ahmad Dony Mutiara Bahtiar; Ahmad Dzulfikri Halimi
Malikussaleh Journal of Mechanical Science and Technology Vol. 10 No. 1 (2026): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v10i1.23032

Abstract

The development of natural fiber-based composite materials continues to increase due to their lightweight, environmentally friendly properties, and ability to provide good mechanical performance. Sisal fiber is one of the potential reinforcing candidates because it has high tensile strength and abundant availability; however, the performance of sisal fiber composites is greatly influenced by the lamination angle orientation, while research on lamination angle variations in epoxy composites is still limited. This study was conducted to examine the effect of sisal fiber lamination angle variations on the tensile strength of epoxy composites with orientations of 0°/90°/0°, 30°/-30°/30°, and 45°/-45°/45°. The composites were made using the hand lay-up method with a fiber volume fraction of 50%, while tensile testing was carried out in accordance with the ASTM D3039 standard. The results showed that the lamination angle had a significant effect on the mechanical properties of the composites. The 0°/90°/0° orientation provided the highest performance with a tensile strength of 98.403 MPa, strain of 9.457%, and elastic modulus of 1.061 GPa. The 30°/-30°/30° orientation produced a tensile strength of 9.957 MPa and a modulus of 0.577 GPa, while the 45°/-45°/45° orientation achieved 30.662 MPa and a modulus of 0.722 GPa. These findings confirm that fibers aligned parallel to the tensile direction contribute most significantly to the increase in the mechanical strength of composites. This research is expected to serve as a reference in selecting the optimal lamination configuration and support the development of strong, lightweight, and more sustainable natural fiber composite materials.
Co-Authors Aditya Sandy Pratama Ahmad Dony Mutiara Bahtiar Ahmad Kholili Kuthut Widekso ahsin fahmi mubarok Ariyanto, Aldy Firmansyah Aullia, Fikha Rizky Benni Agung Nugroho, Benni Agung Cahyono, Hiding D. Setiawan David Muhklison Hudiyanto DENI SETIAWAN Deni Setiawan Ellya Nurfarida, Ellya Fery Sofian Efendi fitria nur hamidah Hartono, Reonaldo Hiding Cahyono M. Ahsin Fahmi M. W. Arif Sektiono Moch Wisnu Arif Sektiono Moch. Fiky Frediansyah Moch. Wisnu Arif Sektiono Muhammad Yunus Putra, Muchamad Hanafi Rahmad, Hadi Riswan Eko Wahyu Susanto Rojikin, Setyo Saiful Arif Sektiono, M Wisnu Arif Wahyu, Mujahid Yanuarmawan, Dion Yusfiansyah, Fahmi Nurdin Zulfa Khalida