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Abstract
Composite Houses at the BPPT material technology center and polymer technology center were designated as centers of superior polymer composite science and technology in 2018. For this reason, BPPT designed earthquake-resistant composite houses using lightweight materials so they are easy to carry and fast to install, namely using an easy knock down connection system. disassembled. This earthquake-resistant house uses composite materials, namely Styrofoam or polystyrene foam and glass fiber reinforced plastic (Fiberglass Reinforced Plastics / FRP). This material is stacked like a sandwich so it is called a sandwich composite panel. The weight of this panel is only about 2 kilograms, 30 percent lighter than cement walls reinforced with glass fiber or Fiberglass. The purpose of this study was to analyze the bending strength value of the Fiberglass fiber sandwich composite in the bending test and the results of the bending value of the Fiberglass fiber sandwich composite with the specification of an earthquake resistant composite house (RKTG) and the effect of matrix strength on the fiberglass fiber sandwich composite using polyurethane core with the hand lay-up technique.. It is said to be simple because the technique is very easy to apply, namely liquid resin is smeared over a mold and then the first layer of fiber is placed on top of it, then using a PVC resin spatula it is flattened again. This step is carried out continuously until the desired specimen thickness is obtained. Bending test values with each mass ratio of 1 kg, 1.5 kg, 2 kg, and 2.5 kg. It can be concluded that from the results of this research at a mass ratio of 1.5 kg the results are 2,242 MPa, from the results of this research the Ultimate value Higher Tensile Strength compared to other masses.
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References
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References
Sebayang S, 2021. Modifikasi Struktur Rumah Sakit Umum Hermina Lampung dengan Metode Sistem Rangka Bresing Eksentris (SRBE) untuk Bangunan Tahan Gempa, Jurnal Rekayasa Sipil dan Desain (JRSDD):9(2): 341-352,
Azissyukhron M, Hidayat S. 2018. Perbandingan Kekuatan Material Hasil Metode Hand Lay-up dan Metode Vacuum Bag Pada Material Sandwich Composite, In Prosiding Industrial Research Workshopand National Seminar: 9: 216-220
Setiyawan D, Respati SMB, Dzulfikar M. 2020. Analisa Kekuatan Komposit Sandwich Karbon Fiber Dengan Core Styrofoam Sebagai Material Pada ModelPesawat Tanpa Awak (Uji Tarik & Uji Bending), Majalah Ilmiah Momentum: 16(1): 1-5.
Ardiyanto P. 2014. Analisa Pengaruh Ketebalan Inti (Core) Polyurethare Terhadap Karateristik Bending Komposit Sandwich. Skripsi. Surabaya: institute Teknologi Sepuluh November,
Callister WD. 2007. Materials Science and Engineering: An Introduction, 7th ed. New York: John Wiley & Sons, Inc.
Bardono S. 2019. BPPT Ciptakan Bale Kohana, Rumah Komposit Tahan Gempa https://technologyindonesia.id/bencana/bppt-ciptakan-bale-kohana-rumah-komposit-tahan-gempa. Diakses 4 Juli 2024.
Astasari. 2017. Pengaruh Variasi Arah Serat Dan Jumlah Layer Terhadap Karakteristik Bending Dan Torsional Stiffnes Komposit Sandwich Serat Karbon Dengan Core Kayu Balsa. Tugas Akhir. Jurusan Teknik Mesin. Institut Teknologi Sepuluh Nopember.
Muhammad M, Putra R. 2018. Uji Mekanik Komposit Berpenguat Serat Pandan Duri dan Resin Polyester Dengan Variasi Komposisi Metoda Fraksi Berat, Jurnal Teknologi Kimia Unimal: 6(2): 63-72.