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All Journal Jurnal MEKANIKAL Rekayasa Mesin Journal of Mechanical Engineering Science and Technology Conference SENATIK STT Adisutjipto Yogyakarta Infotekmesin International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Automotive Experiences
Muhammad Syaiful Fadly
Fakultas Teknik, Universitas Tadulako
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Effect of Various Canopy Shapes on the Drag Coefficient of Pickup Trucks Anwar, Khairil; Fadly, Muhammad Syaiful; Hermanto, Muhammad Wahyu
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 9, No 1 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v9i12025p203

Abstract

The aerodynamic performance of light commercial vehicles, such as the Suzuki Carry, plays a crucial role in their fuel economy and road stability. One typical add-on, a canopy, often changes that airflow and, as a result, alters the drag acting on the vehicle. In this study, three different canopy shapes, flat, curved, and triangular, were examined to understand how each one affects the drag coefficient (Cd). To investigate this, both wind tunnel trials and CFD runs were conducted to track the airflow and measure any changes in drag with greater detail. For reference, the exact vehicle without a canopy was used as the base for comparison. From what has been observed, it is clear that adding a canopy tends to increase drag compared to leaving the cargo bed open. Of the three shapes tested, the flat canopy proved to be the most effective in increasing Cd, especially at moderate speeds. At around 80 km/h, for example, it pushed drag up by just over 11.063%. On the other hand, the curved canopy yielded the best result, adding only about 2.071% at 60 km/h. Flow images from the CFD runs showed that the flat and triangular designs disrupted the airflow more significantly, resulting in greater flow separation and larger wakes behind the truck. In contrast, the curved canopy seemed to keep the air closer to the surface, leaving less turbulence in its wake.
CHARACTERISTICS OF SUGARCANE FIBER COMPOSITE REINFORCED WITH MALAPOGA WOOD COATING Sirajuddin, Awal Syahrani; Fadly, Muhammad Syaiful; Iqbal, Muhammad; Asmara, Anjar
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.1944

Abstract

Rapid technological developments have led to an increased demand for composite materials. However, composite materials utilizing natural fibers, such as sugarcane bagasse fiber, have not been fully optimized. This study aimed to analyze the characteristics of sugarcane bagasse fiber-reinforced composites with a Malapoga wood coating, focusing on the Modulus of Elasticity (MOE) and Modulus of Rupture (MOR). The primary material used in this research was Malapoga wood (Toona Ciliata M. Roem), which was treated with a mixture of sugarcane bagasse fiber and epoxy in volume ratios of 30%:70%, 40%:60%, and 50%:50%. The composites were then coated with Malapoga wood under cold pressure. Specimens and bending strength testing procedures followed ASTM D143 standards. Macro photographs of the fracture cross-sections of the test specimens were taken to determine the failure mechanism. The test results indicated that the composite with a 50%:50% composition exhibited highest MOE and MOR values compared to the other compositions. The maximum modulus of elasticity (MOE) at 50% was 70,256.67 kg/cm², and for 50% MOR, it was 716.36 Kg/cm². The mixture of sugarcane bagasse fiber with epoxy produced a denser coating on the Malapoga wood.
Analisis Kandungan Silikon Karbida (SiC) Sebagai Filler Terhadap Peningkatan Kekerasan Pada Metal Matrik Komposit Arrahim, Muhammad Ghazali; Wicaksono, Leo Hutri; Fadly, Muhammad Syaiful; Musyafiq, Afrizal Abdi
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1668

Abstract

Metal Matrix Composite is one of the metal composites that utilize aluminum alloy as a matrix in its fabrication. MMC has better specifications than the conventional materials it forms because it is light, ductile, with better hardness properties. The aluminum alloy as the matrix in this study has good mechanical properties but relatively low hardness values, especially type 2xxx aluminum containing Al-Cu or duralumin. By adding silicon carbide (SiC) ceramic content which acts as a filler in the manufacture of MMC it aims to increase the hardness value through a strengthening mechanism by analyzing the distribution of filler particles to the matrix. Using the sintering method with temperature variations that affect the mechanical properties of MMC. From the tests carried out the MMC specimens experienced an increase of 7.06% with the highest hardness value at 300oC sintering temperature of 71.6 HRB. With a SiC content of 14.42% Wt. Then it was observed using a Scanning Electron Microscope (SEM) that the distribution of SiC particles experienced an even distribution and bonded to the aluminum matrix thereby reducing porosity and increasing the hardness value of the MMC material.
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.
Crashworthiness and Failure Mechanism of Polylactic Acid Multi-Cell Tubes Hybridized with Aluminum/Copper Under Axial Compression Muhammad Syaiful Fadly; Khairil Anwar; Muhammad Sadat Hamzah; I Komang Diego Antara
Automotive Experiences Vol. 9 No. 1 (2026)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.14485

Abstract

This research investigates the crashworthiness performance and energy absorption behavior of crash boxes constructed from hybrid materials comprising Polylactic acid (PLA), aluminum (Al), and copper (Cu) under quasi-static axial compression. The crash box configuration comprises a PLA outer shell, an internal Al or Cu core, and PLA-based multi-cell structures with varying geometries, including circular, square, and hexagonal shapes. These components were fabricated through 3D printing and subjected to quasi-static axial compression testing. The experimental findings indicate that incorporating a hybrid core significantly enhances energy absorption capabilities. Among the tested configurations, the hexagonal multi-cell design exhibited the highest energy absorption, reaching 0.53 kJ. In addition, the CB-Al-H configuration, which uses an Al core, showed the highest specific energy absorption (SEA) of 77.77 kJ/kg and a crushing force efficiency (CFE) of 0.43%. This SEA value is approximately 69.17% higher than that of the copper-based configuration (CB-Cu-H), which recorded 45.98 kJ/kg with a CFE of 0.48%. The lower SEA observed in the copper-core configuration is primarily due to the higher Cu density, which increases the overall structural mass and consequently reduces specific energy absorption.
Co-Authors Afrizal Abdi Musyafiq Anindito Purnowidodo Arrahim, Muhammad Ghazali Awal Syahrani Sirajuddin Bakri Bakri Bakri Bakri Hermanto, Muhammad Wahyu Hery Widijanto I Komang Diego Antara Khairil Anwar Khairil Anwar Leo Hutri Wicaksono Muhammad Ghazali Arrahim Muhammad Ghazali Arrahim Muhammad Ghazali Arrahim Muhammad Ikram Kido Muhammad Ikram Kido Muhammad Iqbal Muhammad Sadat Hamzah Muhammad Sadat Hamzah Mustafa Mustafa Nilasari, Sri Nurwijayanti Putu Hadi Setyarini Ramang Magga Sri Chandrabakty Wicaksono, Leo Hutri Wiwik Handayani