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DESAIN STRUKTUR FLOAT PESAWAT AMFIBI Sigit Adhi Nugroho; Haris Ardianto; Hery Setiawan
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 6 No 2 (2020): Teknika STTKD
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (687.831 KB) | DOI: 10.56521/teknika.v6i2.216

Abstract

Lembaga Penerbangan dan Antariksa Nasional (LAPAN) berkerja sama dengan PT Dirgantara Indonesia (PT DI) berupaya mengembangkan pesawat N219 menjadi pesawat amfibi. Pengembangan tersebut membutuhkan penambahan komponen pada pesawat yaitu float agar dapat lepas landas dan mendarat di air. Pengembangan tersebut mempertimbangkan struktur float yang harus mengurangi beban float. Pada penelitian ini dilakukan analisis nilai stress dan ketebalan float yang akan diubah kedalam berat float. Simulasi Finite Element Method (FEM) dengan perangkat lunak ABAQUS 6.14. Metode yang digunakan yaitu dengan mensimulasikan desain float dengan material Aluminium 6061-T6 dan material Komposit Carbon/Epoxy. Dari hasil simulasi diperoleh bahwa ketebalan material akan mempengaruhi nilai stress float. Semakin tebal float maka nilai stress akan semakin kecil. Material Komposit Carbon/Epoxy mampu mengurangi berat float sebesar 14.7 % dibandingkan material Aluminium 6061-T6. Dengan nilai efisiensi tersebut, material komposit layak diperhitungkan dalam mengganti material float tanpa mengurangi kekuatan float tersebut.
UJI Tarik KOMPOSIT KARBON DENGAN MATRIX POLYPROYLENE DENGAN PARAMETER SUHU KERJA 600℃ DENGAN MEDIA TEKAN LOGAM DAN KERAMIK Mohammad Pandji Nugraha; Ilham Fahira Minan Nurrohman; Haris Ardianto; Hery Setiawan
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 8 No 1 (2022): Vol 8 No 1 (2022): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (788.62 KB) | DOI: 10.56521/teknika.v8i1.504

Abstract

Right now the distribution of polypropylene in the environment has become more and more so that it can pollute the environment. Thus polypropylene waste can be converted into a composite matrix. In this study, the manufacture of composites from recycled polypropylene was carried out, to be further combined with carbon fiber. After that, tensile testing is carried out to find out the mechanical properties. As a variation, there are differences in press media, namely using metal and ceramics. This research method is carried out experimentally, where when polypropylene waste has been softened using a heat gun at a temperature of 600 °C, it is emphasized using aluminum metal and ceramics so that polypropylene can be solid. Then for the dimensions of its manufacture according to ASTM D 638 for recycled polypropylene and ASTM D3039 for recycled polypropylene matrix carbon fiber composites. From the tensile test results for ASTM D638, specimens with suppression treatment using metal press media have an average maximum tensile strength of 5.40 MPa. As for specimens with ceramic press media has an average value of 6.32 MPa. Tensile testing on recycled polypropylene matrix carbon fiber composite specimens showed tensile strength with a value of 7.53 MPa for the treatment of metal press media and for ceramic press media its strength value of 10.66 MPa. Thus ceramic press media in the polypropylene composite manufacturing process is better than metal press media
THE EFFECT OF PRESS MEDIA FROM CERAMIC AND METAL MATERIALS ON THE TENSILE STRENGTH OF RECYCLED POLYPROPYLENE FOR THE DEVELOPMENT OF COMPOSITE MATRIX MATERIALS Haris Ardianto; Hery Setiawan; Sehono Sehono; Maruli Tua Pranata
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 8 No 1 (2022): Vol 8 No 1 (2022): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (457.508 KB) | DOI: 10.56521/teknika.v8i1.619

Abstract

Composites generally consist of fiber (filler) and resin (matrix). Resin from recycled polypropylene (plastic) polymer was chosen because it has superior properties compared to other types. The manufacturing process with a hot air melting temperature (heat gun) of 300oC was chosen with two variations of press media, namely metal and ceramic, to compare the mechanical properties of tensile strength. Specimens were shaped according to the ASTM D638 standard. The results showed that the recycled polypropylene with ceramic press media had an average tensile stress of 15.05 MPa, which was higher than that of compressed metal media of 13.06 MPa.