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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan International Journal of Artificial Intelligence Research Jurnal Inotera Jurnal Elemen jurnal syntax admiration International Journal Of Science, Technology & Management (IJSTM) Jurnal Pertahanan dan Bela Negara STRATEGI PERANG SEMESTA Asian Journal of Innovative Research in Social Science Journal Research of Social Science, Economics, and Management Strategi Pertahanan Udara
Sovian Aritonang
Indonesia Defense University
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Journal : Jurnal Elemen

 1 
MATERIAL KOMPOSIT POLIMER TAHAN BALISTIK UNTUK APLIKASI HELM MILITER DALAM MENDUKUNG MATERIAL PERTAHANAN INDONESIA Mahyaruddin Mrp; Sovian Aritonang
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 2 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i2.219

Abstract

Polymer composites are widely used in military applications. In this instance, to shed light on polymer composites and their uses in the field of defense, particularly ballistic ones. Military vests, personnel helmets, and other items that need to be made of ballistic-resistant materials but are still lightweight and reasonably priced, fall into three general categories. When it comes to enhancing the mobility of military forces, composite materials have outperformed metal materials in military applications. Given the speed of approaching bullets, it is crucial that military helmets contain composite materials, one of which is constructed of thermoplastic polymers and thermosets. Utilizing a bullet and a new polymer composite (UHMWPE) with a weight of 1000 g one suitable material for use in military bulletproof helmets is one with a speed of 600 m/s.
Ballistic Performance and Microstructure of Tempered AISI 4130 Steel Ilham Aminudin; Sovian Aritonang
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 2 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i2.220

Abstract

Heat treatment methods are generally carried out to increase ductility, increase hardness, increase metal tensile stress, and so on. AISI 4130 steel is commonly used for manufacturing equipment, vehicle parts, stone-crushing machines to body armor. To improve the quality of the steel, heat treatment is required by providing austenitizing and tempering processes. This study aims to determine the hardness, density, and ballistic performance of AISI 4130 steel after tempering at 290oC. The results of experiments on AISI 4130 steel which has been tempered at a temperature of 290oC with a time of 90 minutes. Gets a hardness of 45 HRC. For the density test, the result is 7.85 g/cm3. With the results of the ballistic test getting the numbers V = 635 m/s and V50 = 600 m/s, the penetration mode is plugging.
DESAIN OPTIMAL TERAS SMALL MODULAR MOLTEN SALT REACTOR (SM-MSR) SEBAGAI SISTROPULSI KAPAL PERANG EM P Cahyo Ridho Prabudi; Sovian Aritonang; Topan Setiadipura
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 1 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i1.238

Abstract

Utilizing a nuclear propulsion system as a source of propulsion is one method for extending the durability of warships. Compared to using natural oil, using nuclear energy as a propulsion system offers a high effectiveness value. The Molten Salt Reactor illustrates a reactor design that can be utilized on warships (MSR). The current MSR is still quite big. Therefore in this research, an optimal design of the Small Modular Molten Salt Reactor (SM-MSR) core will be adapted to the surface area of ​​a warship. From the simulation and optimization carried out with the MCNP software, the parameter used as a reference is criticality. The optimal fuel material composition is 1% Li and 2% U-235, with an optimal design geometry having a cell core pin radius of 0.8 cm, a pin cell blanket radius of 2.6 cm, and a core height of 160 cm. The initial design of the SM-MSR in this study had a negative coefficient of void reactivity.
Co-Authors Ade Bagdja Ade Bagdja Amperiawan, Gita Ardan Nagra Coutsar Budi Santoso Cahyo Ridho Prabudi Erry Dwianto Erzi Agson Gani Florianus Lamablawa Florianus Lamablawa Hermanto Hermanto Ilham Aminudin Jupriyanto Jupriyanto Mahyaruddin Mrp Mochamad Rofiq Muhammad Akhdan Fadhil Opa Mustopa Riyadi Juhana Sjafrie Sjamsoeddin Topan Setiadipura Veryawan nanda Perkasa Yusuf Yusuf