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All Journal Agrikultura TEKMAPRO Journal of Industrial Engineering and Management JMPM (Jurnal Material dan Proses Manufaktur) Jurnal Elementer (Elektro dan Mesin Terapan) Jurnal Pertanian Agros Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Teknik Mesin Indonesia Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Scientific Journal of Mechanical Engineering Kinematika Sultra Journal of Mechanical Engineering (SJME) Jurnal Sigmat Teknik Mesin UNSIKA AMMA : Jurnal Pengabdian Masyarakat
Harmiansyah
Institut Teknologi Sumatera
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing

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Journal : Jurnal Teknik Mesin Indonesia

 1 
Studi awal material komposit berpenguat serat bambu dengan matriks resin epoksi/hardener sebagai material antipeluru Harmiansyah; Burmawi; Risky Arman; Rustam Efendi
Jurnal Teknik Mesin Indonesia Vol. 17 No. 2 (2022): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v17i2.351

Abstract

Bulletproof material is used as a bulletproof vest material that functions to protect the human body from the threat of physical attack, especially attacks from firearms. Bulletproof material serves to reduce the kinetic energy of the projectile so it does not hit the bulletproof vest user. The main material in the manufacture of bulletproof material is steel with a high density so that the weight of the bulletproof material is high which causes the user to be unable to move freely. Composite is a material consisting of two or more elements that have good mechanical properties and low density so that it can be used as an alternative to steel for bulletproof materials. The bulletproof material used was reinforced with bamboo fiber with a matrix of epoxy resin/hardener mixture and the addition of 20, 25, and 30 ml ceramic granules, the composite material was tested for ballistics using a variation of the firing range parameter 2; 2.5; and 3 m. Based on the results of ballistic tests, all variations of the addition of ceramic granules were able to reduce the energy of the projectile with a penetration depth of < 1 mm where the kinetic energy of the projectile was 209.83 joule. Based on the macro photo analysis of projectile traces on the bulletproof material, the cracks that occur in the bulletproof material are ductile cracks due to the spread of the cracks to other areas on the surface of the bulletproof material.
Efek kecepatan udara dan penambahan serbuk kayu terhadap kadar kelembapan kotoran sapi yang dikeringkan menggunakan mesin pengering tipe drum dryer Harmiansyah; Kardiansyah; Lathifa Putri Afisna; Teuku Meurah Indra Riayatsyah; Rustam Efendi
Jurnal Teknik Mesin Indonesia Vol. 18 No. 1 (2023): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v18i1.413

Abstract

Indonesia is a tropical country where farmers and ranchers make up the majority of the population. Cows are one form of livestock bred, and the negative impact is air pollution created by cow manure. Drying cow dung with a dryer (drum drayer) is a very effective way to remove the stink that comes from it. The goal of this study was to see how air velocity and powder administration affected moisture content and water evaporation rate when drying cow dung in a drum dryer. This study employed an experimental method, recording temperature changes every 10 minutes for 30 minutes. Moisture levels should be measured and compared before and after heating with different blower speeds (1.3 m/s, 1.7 m/s, 1.9 m/s, and 2.4 m/s). The results revealed that the rate of water evaporation differed depending on the air velocity change. At an air speed of 2.4 m/s, the highest water evaporation rate is 0.000736 kg/s, while the lowest water evaporation rate is 0.000142 kg/s. The comparison of moisture content from the drying process with and without sawdust revealed values that were not significantly different. The ultimate moisture content attained at an air speed of 2.4 m/s is 70%, which is 5% higher than the drying procedure without powder (final moisture value is 75%). However, at a speed of 1.3 m/s, the final moisture content value obtained is 90%, which is higher than the final moisture content value acquired during the drying process without powder (80%).
Co-Authors Adi Prastyo Arirohman, Ilham Dwi Arjal Tando Azikia Karunia Putri Burmawi Cinthya Ayu Oktaviani Darwin Darwin Devia Gahana Cindi Alfian Devy Arysandia Diptaningsari, Danarsi Erus Rustami Fil’aini, Raizummi Fino Agustian Jourdan Gamas Fitrah Qalbina Gumaran, Setyadi Habib M Taufiq Herlina Herlina Irwansyah Irwansyah Jekvy Hendra Jovita Delphia Syifa Joyce Rebeka Gultom Kardiansyah Lathifa Putri Afisna M. Azhar Mustafid Mahessa Z.W. Prayudah Mawardi, Rahadian Meidaliyantisya, Meidaliyantisya Meli Hikmawati Mufidah, Zunanik Muh. Kusmali Muhammad Dermawan Muhammad Syaukani Mustafid, M. Azhar Nawang Wulan Saputri Ni Made Tiara Wati Ni Wayan Arya Utari Ni Wayan Utari Nila Wardani, Nila Nova Anika Putri Arinjani Putri Wulan Dari Raizummi Fil'aini Raizummi Fil’aini Raizummi Fil’aini Ridwan Ridwan Risky Arman Ruly Davisca Pratama Rustam Efendi Santi Apriani Sarah Dila Rahmawati Savitri Wahyuni Setyadi Gumaran Sinober Simbolon Siti Muslimah Sudarmanto Jayanegara Sugatra Dwi Atmaja Sylvrina Margareth Sirait Teuku Meurah Indra Riayatsyah Tri Novita Sari Wahyu Setiawan Welly Liku Padang