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All Journal Jurnal Teknologi Jurnal Mechanical Jurnal Teknik Mesin SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Indonesian Journal of Applied Science and Technology
Salman Salman
university of mataram
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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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.
Ergonomic Risks and Musculoskeletal Disorders (MSDs) Interventions Among Batik Workers: A Systematic Literature Review Sarah Salman; Salman Salman; Ahmad Ibrahim Syahrul
Indonesian Journal of Applied Science and Technology Vol. 7 No. 1 (2026): Edisi Januari-Juni 2026
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The batik industry is an important sector in the Indonesian economy and culture, employing a large workforce in informal positions. However, unergonomic work postures, long working hours, and inappropriate tools are the main causes of the high incidence of musculoskeletal disorders (MSDs) in batik industry workers. This study emphasizes the importance of systematically applying ergonomic principles to improve the health and productivity of batik artisans in Indonesia. This study contributes by comparing the effectiveness of various ergonomic methods in the specific context of the traditional batik industry, which has not previously been systematically discussed, and by evaluating the ergonomic interventions that have been implemented. The method used was a PRISMA-based Systematic Literature Review, which included searching, selection, bibliometric analysis, and qualitative discussion. After being filtered, 19 articles were further analyzed. The study results show that ergonomic methods such as NBM, REBA, and RULA are the most widely used to evaluate work posture and the risk of MSDs. Key findings indicate that the most common complaints occur in the neck, shoulders, back, and wrists. The most effective interventions include improving work equipment according to anthropometry, work posture education, task rotation, and implementing active rest.
Peningkatan produktivitas kerja di usaha kecil pada Dusun Ambung, Desa Masbagik Timur, Kecamatan Masbagik, Kabupaten Lombok Timur Syarif Hidayatullah; Syahrul Syahrul; I Dewa Ketut Okariawan; Salman Salman; Agus Dwi Catur; Suteja Suteja; Ahmad Akromul Huda
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 3 (2026): June (In Progress)
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v%vi%i.39007

Abstract

AbstrakUsaha kecil di Dusun Ambung, Desa Masbagik Timur, masih menghadapi kendala efisiensi produksi akibat penggunaan alat tradisional dalam pengolahan keripik singkong. Proses pemotongan singkong secara manual membutuhkan waktu lama, menghasilkan irisan yang kurang seragam, dan meningkatkan risiko cedera kerja. Kegiatan pengabdian ini bertujuan meningkatkan produktivitas kerja mitra melalui penerapan alat pemotong singkong berbasis teknologi tepat guna. Metode kegiatan meliputi observasi lapangan, persiapan dan perakitan alat, sosialisasi penggunaan alat, edukasi manfaat teknologi, serta serah terima alat kepada mitra usaha kecil. Seluruh tahapan dilakukan secara partisipatif agar mitra dapat memahami, menggunakan, dan merawat alat secara berkelanjutan. Hasil kegiatan menunjukkan bahwa penggunaan alat pemotong singkong meningkatkan kapasitas pemotongan dari 8–10 kg/jam pada metode manual menjadi 22–26 kg/jam setelah alat digunakan, atau sekitar 2,4–2,8 kali lebih tinggi. Waktu pemotongan untuk 10 kg singkong juga berkurang dari sekitar 60–75 menit menjadi 23–27 menit. Selain itu, hasil irisan menjadi lebih seragam, kebutuhan tenaga kerja berkurang, dan risiko cedera saat produksi dapat diminimalkan. Program ini menunjukkan bahwa inovasi sederhana berbasis teknologi tepat guna dapat meningkatkan efisiensi, produktivitas, dan daya saing usaha kecil pengolahan singkong. Kata kunci: usaha kecil; alat pemotong singkong; teknologi tepat guna; produktivitas; Dusun Ambung. AbstractSmall businesses in Ambung Hamlet, Masbagik Timur Village, still face production efficiency challenges due to the use of traditional tools in cassava chip processing. The manual cassava cutting process is time-consuming, produces uneven slices, and increases the risk of workplace injuries. This community service activity aims to improve the productivity of small business partners through the implementation of cassava-cutting tools based on appropriate technology. The activity methods include field observations, tool preparation and assembly, training on tool usage, education on the benefits of the technology, and the handover of tools to small business partners. All stages were conducted in a participatory manner so that partners could understand, use, and maintain the tools sustainably. The results of the activity show that the use of the cassava cutting tool increased cutting capacity from 8–10 kg/hour using manual methods to 22–26 kg/hour after the tool was used, or approximately 2.4–2.8 times higher. The cutting time for 10 kg of cassava also decreased from about 60–75 minutes to 23–27 minutes. In addition, the slices became more uniform, labor requirements were reduced, and the risk of injury during production was minimized. This program demonstrates that simple innovations based on appropriate technology can improve the efficiency, productivity, and competitiveness of small cassava processing businesses. Keywords: small business; cassava cutting tool; appropriate technology; productivity; Ambung Hamlet.
Co-Authors Agus Dwi Catur Ahmad Akromul Huda Ahmad Fadly Ahmad Ibrahim Syahrul I Dewa Ketut Okariawan I Made Adi Sayoga Muhammad Fajar Muhammad Hazmi Rahmat Maulana Sarah Salman Suteja Suteja Syahrul Syahrul Syarif Hidayatullah