Claim Missing Document
Check
Articles

Found 13 Documents
Search

Analisis Simulasi Numerik Defleksi Balok Baja ST60 dengan Variasi Pembebanan dan Tumpuan Muhammad Syaiful Fadly; Mustafa; Muhammad Ikram Kido; Muhammad Ghazali Arrahim
Infotekmesin Vol 15 No 2 (2024): Infotekmesin, Juli 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i2.2268

Abstract

This research aims to analyze the deflection that occurs through numerical simulation using Ansys Software in static structural modeling on an ST 60 steel square beam. The variables in this study are loads of 10, 15, and 20 N, as well as the types of supports, namely fixed-fixed, fixed-roller, and hinge-roller. The results show that the larger the load, the greater the deflection that occurs. The maximum deflection occurs at a load of 20 N. The fixed-fixed and hinge-roller supports show maximum deflection at a distance of 400 mm, while the fixed-roller support shows maximum deflection at a distance of 450 mm. Among the three types of supports used in this study, the simple support (hinge-roller) results in greater deflection compared to the fixed-fixed and fixed-roller supports. The hinge-roller support results in a deflection of 1.212 mm, the fixed-roller support results in a deflection of 0.541 mm, and the fixed-fixed support results in a deflection of 0.302 mm..
EFFECT OF DRILLING PARAMETERS ON THRUST FORCE AND DELAMINATION DAMAGE OF DRILLED RAMIE WOVEN – COIR FIBER HYBRID COMPOSITES Chandrabakty, Sri; Fadly, Muhammad Syaiful; Nilasari, Sri
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1890

Abstract

This study examines the effect of spindle speed and feed rate variations on the delamination mechanism and thrust force of hybrid composite materials reinforced with ramie weave and coir fibers. The specimen was made with a volume fraction of 30%, consisting of 6 layers of woven ramie, with the remainder being coir. The drilling process is divided into four main phases, showing changes in thrust force at each stage. The results indicate that an increase in feed rate tends to increase thrust force and cause microstructural damage such as delamination and fiber pull-out. At a feed rate of 0.26 mm/rev and a spindle speed of 1500 RPM, the maximum thrust force is reached, indicating the most severe damage. The delamination factor is higher on the exit side compared to the entry side, especially at higher spindle speeds. Tensile tests show a significant decrease in the tensile strength of the composite material due to drilling, with the highest tensile stress achieved at a spindle speed of 1500 RPM and a feed rate of 0.1 mm/rev, although still lower than the sample without holes. The combination of high feed rate and high spindle speed increases the risk of material damage, but the proper selection of drilling parameters can help minimize damage and maintain the mechanical integrity of the composite material. This study provides important insights for industrial applications where mechanical strength and drilling efficiency are crucial.
PERFORATION AND PENETRATION OF FIBER METAL LAMINATES TARGET BY HEMISPHERICAL PROJECTILE Fadly, Muhammad Syaiful; Purnowidodo, Anindito; Setyarini, Putu Hadi; Bakri, Bakri; Chandrabakty, Sri
International Journal of Mechanical Engineering Technologies and Applications Vol. 4 No. 2 (2023)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2023.004.02.8

Abstract

This study aims to examine the phenomena that occur due to projectile penetration on fiber metal laminate. Ballistic testing was carried out experimentally according to National Institute of Justice standards (NIJ Standard 0101.06 level III-A) using a 9 mm full-metal jacket projectile with a normal angle of attack (90° to the target). The results showed that fiber metal laminate could withstand the projectile rate by penetrating the first layer (aluminum plate) and the second layer (aramid/epoxy), while the last layer was deformed to form a bulge. The pierced aluminum plate is characterized by petalling failure. Meanwhile, the aramid/epoxy was penetrated by the projectile with failure of the primary yarn to break the fiber.