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All Journal Jurnal Inovasi Pendidikan IPA Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin Jurnal Bioedukatika SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan EDUKATIF : JURNAL ILMU PENDIDIKAN International Journal of Marine Engineering Innovation and Research Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Jurnal Informasi Sains dan Teknologi (ISAINTEK) Makara Journal of Technology Jurnal Bakti Nusa Jurnal Pepadu Energy, Materials and Product design Jurnal Polimesin
Dwi Setyawan
Universitas Muhammadiyah Malang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Pelatihan penggunaan mesin pencacah kotoran sapi dalam proses pembuatan pupuk organik di Desa Sesait Huda, Ahmad Akromul; Wirawan, Made; Sinarep, Sinarep; Setyawan, Paryanto Dwi; Pandiatmi, Pandri; Syahrul, Ahmad Ibrahim
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 5 (2025): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i5.33449

Abstract

Abstrak Desa Sesait menghadapi permasalahan pengelolaan limbah peternakan, khususnya kotoran sapi yang berpotensi mencemari lingkungan serta belum dimanfaatkan secara optimal. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan dan keterampilan mitra, yakni Kelompok Tani Ingin Maju, dalam mengolah limbah kotoran sapi menjadi pupuk organik menggunakan teknologi tepat guna berupa mesin pencacah. Metode yang digunakan meliputi pelatihan partisipatif berbasis praktik langsung, dengan evaluasi melalui pretest dan posttest terhadap 20 peserta. Hasil evaluasi menunjukkan peningkatan pengetahuan peserta sebesar 52% dengan nilai rata-rata 91,50 dan keterampilan peserta yang mampu mengoperasikan mesin secara mandiri. Program ini memberikan dampak positif terhadap peningkatan keterampilan teknis masyarakat, efisiensi proses pembuatan pupuk organik, serta membuka peluang diversifikasi usaha pertanian. Pelatihan ini diharapkan menjadi langkah awal dalam mendorong pertanian berkelanjutan berbasis pemanfaatan limbah lokal. Kata kunci: limbah peternakan; pupuk organik; mesin pencacah; pelatihan. Abstract Desa Sesait menghadapi permasalahan pengelolaan limbah peternakan, khususnya kotoran sapi yang berpotensi mencemari lingkungan serta belum dimanfaatkan secara optimal. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan dan keterampilan mitra, yakni Kelompok Tani Ingin Maju, dalam mengolah limbah kotoran sapi menjadi pupuk organik menggunakan teknologi tepat guna berupa mesin pencacah. Metode yang digunakan meliputi pelatihan partisipatif berbasis praktik langsung, dengan evaluasi melalui pretest dan posttest terhadap 20 peserta. Hasil evaluasi menunjukkan peningkatan pengetahuan peserta sebesar 52% dengan nilai rata-rata 91,50 dan keterampilan peserta yang mampu mengoperasikan mesin secara mandiri. Program ini memberikan dampak positif terhadap peningkatan keterampilan teknis masyarakat, efisiensi proses pembuatan pupuk organik, serta membuka peluang diversifikasi usaha pertanian. Pelatihan ini diharapkan menjadi langkah awal dalam mendorong pertanian berkelanjutan berbasis pemanfaatan limbah lokal. Keywords: livestock waste; organic fertilizer; chopping machine; training.
Hybrid spot welding-epoxy bonding of AISI 1008 steel: Shear and nugget analysis Setyawan, Paryanto Dwi; Hakiki, Irfan; Sugiman, Sugiman; Salman, Salman; Sinarep, Sinarep; Maulana, Andi
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7487

Abstract

The growing demand for lightweight, high-performance structures in transportation and manufacturing has intensified research on hybrid weld-bonding as a joining method that synergizes the metallurgical strength of resistance spot welding (RSW) with the stress-damping capability of adhesives. However, the interaction between welding parameters, adhesive type, and adhesive thickness and their collective influence on nugget microstructure and joint integrity remains poorly understood. This study addresses these gaps through a systematic parametric investigation of hybrid spot weld–epoxy joints in AISI 1008 steel. Three commercial epoxy adhesives (Araldite 5 min, Araldite 90 min, and Devcon 90 min) were applied at thicknesses of 0.2, 0.6, and 1.0 mm under a fixed RSW schedule (50 A, 10 s), followed by a secondary factorial test varying welding current (50-80 A) and time (10-20 s) for Araldite 5 min at 0.6 mm. Mechanical performance was evaluated via lap shear testing, while fracture morphology and nugget chemistry were analyzed using optical microscopy, SEM, and EDX. Results revealed an optimal configuration at 60 A and 10 s with 0.6 mm Araldite 5 min adhesive, achieving the highest shear strength (~5.74 kN). Strength exhibited a non-monotonic dependence on adhesive thickness, indicating coupled thermo-mechanical effects of polymer decomposition and stress redistribution. Fractographic analysis showed transitions from interfacial to cohesive failure modes with increasing adhesive thickness, while excessive welding energy induced HAZ softening and porosity. The study advances mechanistic understanding by correlating adhesive curing kinetics and thermal degradation with nugget evolution and joint mechanics. These findings provide both scientific insight and practical guidance for optimizing hybrid joining parameters in thin-gauge steel structures.
PERBAIKAN SAMPAN KOMPOSIT SANDWICH OLEH NELAYAN DESA KURANJI Catur, Agus Dwi; Sugiman, Sugiman; Setyawan, Paryanto Dwi; Salman, Salman
Jurnal Pepadu Vol 5 No 4 (2024): Jurnal PEPADU
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i4.5856

Abstract

Nelayan Desa Kuranji setiap hari berkegiatan menangkap ikan di Selat Lombok. Sampan (perahu kecil) berbahan komposit sandwich yang telah dipakai selama 6 tahun telah rusak pada beberapa bagian dan mengalami penurunan fungsinya. Permasalahan yang dihadapi nelayan diselesaiakan dengan memberdayakan mereka. Perbaikan perahu dilatihkan untuk memecahkan masalah pada mitra agar mitra mempunyai ketrampilan dalam perbaikan perahu dengan lambung berbahan komposit sandwich, sehingga mereka tidak perlu mengeluarkan biaya perbaikan yang lebih. Persiapan yang dilakukan adalah menyiapkan materi kegiatan, menyiapkan alat dan bahan. Tahap pelaksanaan kegiatan merupakan tahap yang paling menentukan yang terdiri dari perbaikan perahu komposit sandwich oleh mitra. Tahap evaluasi dilakukan terhadap setiap kegiatan, keseriusan dan ketrampilan mitra dalam memperbaiki perahu diamati. Mitra mampu melakukan perbaikan kerusakan perahu berbahan komposit sandwich secara mandiri, hal ini mengindikasikan bahwa mitra telah memiliki pengetahuan praktik yang baik setelah dilatih oleh tim pengabdian.
BENDING AFTER IMPACTKOMPOSIT SANDWICH BERPENGUAT SERAT BAMBU-FIBERGLASS DENGAN COREPOLYURETHANE RIGID FOAM Catur, Agus Dwi; Sinarep, S.; Setyawan, Paryanto Dwi; Zainuri, Achmad; Supriadi, S.
Dinamika Teknik Mesin Vol 5, No 1 (2015): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

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

Abstract

Impact of the composite sandwich made of materials that become defect, how defects after impact  in material need to be examined .Is that defected composites and wich still has the strength toremain in use?, then the bending after impact strength testing must be done to answer these questions.Composite sandwich with bamboo fiber-fiber glass reinforcement and with a core of 25mm rigid polyurethane foam sheet was produced. Composite sandwich made with two composite sandwich laminate as skinflanking the core. Laminated composite sandwich in this study varied number of layers of reinforcing fibers and type of fiber. Specimens subjected to drop weight impact with varying energy then defect researched and bending  after impact strengthtested. Defects formed on the composite experiencing a drop weight impact loads are: delamination, basin and through hole. The more layers of reinforcing fibers in the composite skin causing moreshallowbasinformed by theresidualimpact. The greater the impact energy causes greater depth of residual basin. Composite sandwich still has the bending strength after impact. Residual bending strength decreases with increasing impact energy imposed on the composite.
KARAKTERISASI KEKUATAN GESER DAN STRUKTUR MIKRO HASIL SPOT WELDING PELAT BAJA KARBON RENDAH: CHARACTERIZATION OF SHEAR STRENGTH AND MICRO STRUCTURE OF SPOT WELDED RESULTS OF LOW CARBON STEEL PLATES Setyawan, Paryanto Dwi; Suniartha, I Made; Sugiman; Sinarep
Energy, Materials and Product Design Vol. 3 No. 2 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

Spot welding is a joining method that utilizes thermal energy generated by the resistance of electric current. Research was conducted to determine the effect of plate thickness, current and welding time on the characteristics of spot welding results. Spot welding was performed on low carbon steel plates of 0.8 mm, 1.5 mm and 1.8 mm thickness with current (50, 60, 70, 80 amperes) and welding time (10, 15, 20 seconds). Characterization of the spot welds was done by shear test (ASTM D1002-10) and observation of macro and micro structure (ASTM E3-11) and failure surface of the specimens. From the research conducted, it is known that the average shear strength increases with decreasing plate thickness, increasing welding current and decreasing welding time. The highest average shear strength of 502,772 N/mm2 was obtained with a plate thickness of 0.8 mm, a welding current of 70 A, and a welding time of 10 seconds. For thin plates, most of the shear test specimens failed in the area of the heat affected zone, while for thick plates, most of the shear test specimens failed in the area of the nugget spot weld.
Ethnozoological Knowledge and Family Economics on Attitudes and Behavior in Using Turtles Dwi Setyawan; Syahrul Gunawan; Ainur Rofieq; Wahyu Prihanta; Fendy Hardian Permana
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i1.5057

Abstract

The mutual interaction between humans and animals in the field of ethnozoology includes uses that can be oriented toward conservation or exploitation efforts. However, excessive abuse of sea turtles (Chelonioidea), especially in the direction of exploitation, has led to population decline and threatened their extinction. Observations in the Derawan Island community, Berau Regency, show a decrease in the number of turtles coming to lay their eggs due to overexploitation. To overcome this problem, it is necessary to carry out research that looks for factors that influence attitudes and behavior in using turtles, including the level of ethnozoological knowledge and family economic status. This research uses a quantitative approach with an analytical correlational design and applies Path Analysis. The results of the analysis show that the level of ethnozoological knowledge has a significant influence on attitudes, with a path coefficient of 0.298 in block-1. In block-2, the results of the analysis show that the level of ethnozoological knowledge directly influences turtle utilization behavior with a path coefficient of 0.313. In conclusion, the level of ethnozoological knowledge has a dominant role in shaping turtle utilization behavior in Derawan Island.
Co-Authors Achmad Zainuri Agus Dwi Catur Ainur Rofieq Andi Maulana, Andi Benny Trisatrio Hilda Puspita Daiva Ardhania Nirwasita Hartono Dewa Gede Pertama Putra, Dewa Gede Pertama Fendy Hardian Permana Gunarta Gunarta Hakiki, Irfan Huda, Ahmad Akromul Intan Ardhana Riswari Jamilatun Nisa Made Wirawan, Made Nasmi Herlina Sari Okariawan, I Dewa Ketut Pandri Pandiatmi Prayuda Atmam, Prayuda Roimil Latifa Rr. Eko Susetyarini S. Sinarep, S. S. Supriadi, S. Salman Salman Sinarep Sinarep Sinarep Siti Zaenab Sugiman Sugiman Sugiman Suniartha, I Made Syahrul Gunawan Syahrul, Ahmad Ibrahim Tutut Indria Permana Umi Mahmudah Wahyu Prihanta Widhi Himawan