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All Journal Jurnal Teknologi Jurnal Mechanical Jurnal Teknik Mesin
Salman Salman
university of mataram
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Pengaruh Fraksi Volume Serat Kulit Jagung terhadap Kekuatan Tarik dan Penyerapan Air Komposit Polyurethane Salman Salman; I Made Adi Sayoga; Rahmat Maulana
Jurnal Teknik Mesin Vol 7, No 1 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v7i1.2268

Abstract

Sejumlah peneliti telah meneliti sifat mekanik komposit yang diperkuat serat kulit jagung. Namun kombinasi kekuatan tarik dan sifat penyerapan air komposit berpenguat serat kulit jagung masih memerlukan penelitan lebih lanjut berkaitan penggunaan komposit pada lingkungan basah. Tujuan dari penelitian ini adalah menentukan pengaruh fraksi volume serat kulit jagung terhadap kekuatan tarik dan sifat serapan airnya. Material utama yang dipakai adalah polyurethane sebagai martik dan kuli jagung sebagai serat.  Pengujian dilakukan dengan mencampurkan matriks dan serat menjadi sepsimen komposit. kekuatan tarik sepsimen diuji dan daya serap air spesimen duji, untuk kekuatan tarik menggunakan menggunakan alat tensilon dengan standar ASTM D 3039. Hasilnya semakin besar fraksi volume serat sepesimen semakin besar pula kekuatan tariknya. Seangkan untuk sifat penyerapan airnya, persentase penyerapan air dari komposit dipengaruhi oleh pengembangan polyurethane saat dibentuk jadi specimen.Abstract -- Some researchers have observed the mechanical characteristics of composite with strengthening by corn skin fibre reinforcement. However the combination of strength stress and water absorption of composite with corn skin fibres needs more exploration due to wide of its application particularly in the wet environment. The objective of this study is to determine the effect of fraction of the composite fibre to the tensile strength and moisture absorption. The main materials of this research are polyurethane as matrix and corn skin fibre as reinforcement. The research was done by mixing matrix and fibre at the certain volume fraction to produce the composite specimens. Specimens were tested by tensile test with ASTM D 3039 and water absorption test. The results shown that the higher fraction of the fibre, the increase the tensile strength. While for the water absorption, the absorption behaviour is affected by the expansion of polyurethane during producing the specimens.
Pengaruh Penambahan Serat Batang Pisang Ketip dan Filler Dedak Padi Terhadap Density, Kekuatan Bending dan Tarik Kompositcore, Sandwich dengan Skin Plywood Salman Salman; Ahmad Fadly
JURNAL MECHANICAL Vol 10, No 1 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v10.i1.201901

Abstract

Fiber-reinforced composite core banana stems with additional filler of husk powder is another way to obtain the expected mechanical behavior of the composite. The aim of this study was to analyze the effect of fiber volume fraction content to density, bending strength and tensile strength of sandwich composite.   Preparation of composite was done by hand lay-up method. Composite material used by banana ketip  fiber and addition of husk powder with variation of fiber volume fraction were 7, 10, and 13 % where husk was constant at 5% with random fiber direction. Tests were conducted by referring to the density est standard (ASTM C 271), bending est (ASTM C 393) and tensile test (ASTM D3039).  The result showed that the greater volume fraction of banana fiber, the lower the density value and the lower the bending strength. Whereas the tensile strength tended to increase as the volume fraction was higher.
PENGARUH FRAKSI VOLUME SERAT SABUT KELAPA DENGAN INTI SERBUK GERGAJI KAYU SENGON TERHADAP KEKUATAN BENDING KOMPOSIT HYBRID SANDWICH Salman Salman; Muhammad Fajar; Muhammad Hazmi
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.167-174

Abstract

The use of composites from hybrid materials requires further research in particular with respect to their mechanical properties. The purpose of this research was to know the effect of volume fraction of fiberglass and coconut husk to the bending strength of composite sandwich hybrid. The main ingredients of this research were sengon sawdust as a composite core, fiberglass and coconut husk, with unsaturated polyester resin as matrix. Specimens were prepared with varying volume fractions of 10%, 20% and 30% for skins of fiberglass and coconut fiber and then were tested with bending tests. The results showed that the greater the volume fraction, the greater the bending strength beside that it also reduced the failure of the composites.
Co-Authors Ahmad Fadly I Made Adi Sayoga Muhammad Fajar Muhammad Hazmi Rahmat Maulana