A5022864008- Polymer Nanocomposites and Properties
- High-Velocity Impact and Material Behavior
- Aluminum Alloy Microstructure Properties
- Mechanical Behavior of Composites
- Tribology and Wear Analysis
- Epoxy Resin Curing Processes
- Aluminum Alloys Composites Properties
- Synthesis and properties of polymers
- Anodic Oxide Films and Nanostructures
- Structural Response to Dynamic Loads
- Microstructure and mechanical properties
- Cellular and Composite Structures
- Metal Alloys Wear and Properties
- Microstructure and Mechanical Properties of Steels
- Concrete Corrosion and Durability
- Heat transfer and supercritical fluids
- Textile materials and evaluations
- Bone Tissue Engineering Materials
- Advanced Surface Polishing Techniques
- Machine Fault Diagnosis Techniques
- Biodiesel Production and Applications
- Non-Destructive Testing Techniques
- High Temperature Alloys and Creep
- Photovoltaic System Optimization Techniques
- Fatigue and fracture mechanics
Polytechnic School of Algiers
2013-2025
This study investigates the thermomechanical performance of advanced nanocomposites reinforced with Multi-Walled Carbon Nanotubes (MWCNTs) and Aluminum Nitride nanoparticles (AlN), using two distinct thermosetting resins: polybenzoxazine (PBz) epoxy. PBz was selected for its exceptional thermal stability, radiation shielding, low moisture absorption, mechanical resilience, while epoxy offers benchmark processing efficiency, structural reliability, cost-effectiveness, superior properties....
Last decades, rolling bearing faults assessment and their evolution with time have been receiving much interest due to crucial role as part of the Conditional Based Maintenance (CBM) rotating machinery.This paper investigates diagnosis based on classification approach using Gaussian Mixture Model (GMM) Mel Frequency Cepstral Coefficients (MFCC) features.Throughout, only one criterion is defined for evaluation performance during all cycle process.This Average Classification Rate (ACR)...
Abstract In this research, an investigation was conducted to ascertain the impact of boron carbide (B 4 C) microparticles on soft and hard armor configurations, utilizing two distinct high‐performance fabrics namely, Kevlar Ultra‐high Molecular Weight Polyethylene (UHMWPE), also work discerned optimal fabric for protection against dagger attacks 9 mm full metal jacket (FMJ) projectiles. Initially, rheological tests four shear thickening fluid (STF) samples revealed that 70% nano‐silicate...
Abstract The use of nano composites in elastomer blends gives outstanding mechanical properties compared to the micro and macro composites, even with very low filler content. In this paper, we studied influence varying proportions natural rubber (NR) acrylonitrile butadiene (NBR) reinforced silica on thermal characteristics rubber. Mechanical characterizations were carried out hardness, tensile strength, elongation at break, tear modulus toughness. For analyses, used differential scanning...
The application of joining processes requires advanced mechanical tests to control the joints’ quality. Generally, welded sheets are verified using tensile shear tests. However, few studies also recommend conducting tension peel and cross-tension present work evaluates behaviour 5754 aluminium jointed by friction stir spot welding (FSSW). influence rotational speed on joint strength was first compared riveted assemblies. Then, with pure copper interlayers were precedents. results indicated...
With the rising demand for lightweight and high-performance shielding systems, sandwich panels made of thin rigid face sheets cellular material cores have recently received much attention. The present study aims to investigate perforation behaviour fibre reinforced composite aluminium foam core under quasi-static dynamic testing conditions. A particular focus is on hybridization effect overall panel behaviour. Impact tests were conducted using an inverse technique. Instead conventional...
This investigation aims to study the efficiency of STF impregnated plain-weave fabric made Kevlar under high and low velocity impact conditions. The shear thickening fluid (STF) was prepared by ultrasound irradiation silica nanoparticles (diameter ≈30 nm) dispersed in liquid polyethylene glycol polymer. impregnation effect determined from single yarn pull-out test penetration at using drop weight machine equipped with hemi-spherical penetrator dynamic force sensor. Force-displacement curves...
This study deals with a numerical procedure designed and built to evaluate the evolution of soot deposits thickness their impact on heat transfer for high-pressure common rail 16V280 marine diesel engine piston. Using combination 3D computations an iterative calculation algorithm, this work reveals complex relationship between deposit, temperature distribution, piston thermal dynamics. Non-uniform deposit distribution is observed, concentrated at bowl peripheral regions. aligns theoretical...
EffEct of ElEmEnt Addition, microstructurE chArActEristics
Abstract In this study, the strain rate sensitivity of a discontinuous short fiber reinforced composite and effect on damage evolution are investigated. The studied material is polymeric with polyamide 6.6 matrix oriented randomly glass fibers at 50% weigh ratio (PA6.6GF50). Tensile tests low high conducted. addition, interrupted tensile carried out to quantify specific stress levels rates. To perform tests, an intermediate fixture realized via double notched mechanical fuses different...