A5022237111- Mechanical Behavior of Composites
- Natural Fiber Reinforced Composites
- Additive Manufacturing and 3D Printing Technologies
- Material Selection and Properties
- Material Properties and Applications
- Structural Load-Bearing Analysis
- Engineering Applied Research
- Epoxy Resin Curing Processes
- Cellular and Composite Structures
- Structural Behavior of Reinforced Concrete
- Nanofabrication and Lithography Techniques
- biodegradable polymer synthesis and properties
- Aerospace Engineering and Control Systems
- Management and Optimization Techniques
- Mechanical Engineering and Vibrations Research
- Structural Analysis of Composite Materials
- Mechanical and Thermal Properties Analysis
- Chemical Synthesis and Analysis
- Graphite, nuclear technology, radiation studies
- Adhesion, Friction, and Surface Interactions
- Geotechnical Engineering and Underground Structures
- Urban Transport Systems Analysis
- Optical measurement and interference techniques
- Synthesis and properties of polymers
- High-Velocity Impact and Material Behavior
National Research and Innovation Agency
2022-2025
National Research, Development and Innovation Office
2025
National Nuclear Energy Agency of Indonesia
2025
University of Indonesia
2024
Indonesian National Institute of Aeronautics and Space
2022-2023
Abstract This study investigates the impact of seawater conditions on single-lap joint properties carbon fiber-reinforced vinyl ester resin (CFRP) with various fiber orientations (0°, 45°, and 90°). Specimens were tested under dry, wet, dried conditions, immersion durations 15 30 days, followed by a drying process. The failure modes, surface chemical bonds analyzed to understand mechanism influence lap shear properties. results show that orientation significantly affects strength, 0°...
<title>Abstract</title> The accurate prediction of composite mechanical properties remains a critical challenge in materials science, particularly bridging the gap between analytical micromechanics and computationally expensive numerical simulations. Traditional homogenization techniques, such as Mori-Tanaka model, often fail to capture microstructural interactions at high fiber volume fractions, leading significant deviations from experimental results. To address this gap, our research...
f sanding treatments on Glass Fibre Reinforced Polymer (GFRP) composite with various grit sizes the surface arithmetic average of roughness profile, topography, liquid contact angle, and single lap joints shear strength was investigated in this research to improve bonding characteristics composites for future utilisation structural adhesion applications. Scanning electron microscopy analysis conducted assess fracture specimen post-testing. This work's primary objective compare effectiveness...
Fiber-reinforced plastics are widely used in aerospace, marine, military, automotive, wind turbine, sports, and civil engineering applications. GFRP is a common material applications such as for UAV structural material. Several techniques that can be the composite structure manufacturing process HLU, VB, and, VARI. This paper studies influence of three processes on compressive shear properties composites. study uses e-glass fiber reinforcement clear epoxy polymer called lycal matrix The...
The purpose of this research is to investigate the mechanical effects polypropylene using sorghum fiber as nucleating agent. Alkalization, bleaching, and acid hydrolysis are all used chemically modify fiber. This modified was then mixed with a polymer matrix for 10 minutes in rheomix at 100 rpm 165°C molded hot press. results study suggest that can improve crystallinity compatibility Furthermore, 23.44 MPa, optimum characteristics mixture micro fibrillated cellulose (MFC) from were achieved...
Sandwich composites are engineering materials that can be optimized and replaced with metals, mainly applied in aircraft fields because of their high strength-to-weight ratio. The quality the composite sandwich structure depends on which fabrication method is applied. methods used this study vacuum bagging, VARI, VARI + post-curing. In bagging methods, fiber resin laminated manually then covered plastic bagging. connected to a pump using hose suck air out. Then, (Vacuum Assisted Resin...
The extensive utilization of composite materials has spurred the advancement diverse joining techniques suitable for components constructed from such materials. This study focuses on examination two specific types joints: single lap and joggle joints. specimens utilized were composed unidirectional carbon fiber combined with vinyl ester resin, manufactured via vacuum-assisted resin infusion method. Vinyl adhesives employed in bonding process, joint surfaces undergoing sanding treatment prior...
Abstract This study discussed the modifications made to Vacuum Assisted Resin Infusion (VARI) method make composites. Composites using standard VARI sometimes have values that not reached desired standard. In addition, there was a modification add Gelcoat and mesh peel ply from previous studies used e-glass fiber epoxy resin, which positively affected mechanical properties of composite. this study, carbon twill material used, is relatively better in than vinyl ester resin with different...
Abstract The rocket nozzle is a crucial and complicated part of rocket, primarily for RX320. Its function to control the exhaust flow, so gets maximum possible forward thrust. However, graphite materials are used inside rockets due good mechanical properties high melting temperature resistance. This study discussed effect post-static fire testing on compared them with technical data sheet (TDS) its graphite. Mechanical has been done determine average flexural strength value test method...
An unmanned aircraft (UAV) is an that does not require a crew on board in its operation. This type of widely used as remote monitoring tool such disaster sites, plantation areas, forests to enemy areas carried out by the military. For this reason, study adhesive strength required connection needed, ribs, spars, skins. From results study, it was found mechanical epoxy adhesives depends several factors manufacturer, content, and operating temperature. The hypothesis experiment Pustekbang LAPAN...
Sandiwch composite is a type of structural material composed strong facesheet and low-density core material. Sandwich composites have high mechanical properties with their lightweight structure, so this can be applied to aircraft structures. This study aims determine the carbon fiber sandwich twill 3K/divinycelll foam various fabrication methods. The methods used vacuum bagging methods, assisted resin infusion method. Mechanical tests conducted are flatwise compressive ASTM C364 standard,...
Pada perancangan pesawat terbang tanpa awak, pemilihan airfoil sangat penting untuk meningkatkan performa pesawat. Airfoil dipilih berdasarkan karakteristik geometri dan aerodinamikanya. Penelitian ini membahas tentang dengan banyak kriteria masing-masing airfoil. tahap awal, sebanyak 1504 tersaring menjadi 5 terpilih. tersebut dianalisis 7 utama, yaitu Camber, Thickness, Manufacturability, Max C_L, C_(L_0 ), C_L angle, L/D. Berdasarkan analisis tersebut, FX 76-MP-160 terpilih sebagai...