A5076394770- Natural Fiber Reinforced Composites
- Mechanical Behavior of Composites
- Solar Thermal and Photovoltaic Systems
- Advanced Machining and Optimization Techniques
- Advanced machining processes and optimization
- Composite Structure Analysis and Optimization
- Aluminum Alloys Composites Properties
- Phase Change Materials Research
- Wood Treatment and Properties
- Advanced materials and composites
- Acoustic Wave Phenomena Research
- Nonlocal and gradient elasticity in micro/nano structures
- Nanofluid Flow and Heat Transfer
- High-Velocity Impact and Material Behavior
- Heat Transfer and Optimization
- MXene and MAX Phase Materials
- Microstructure and mechanical properties
- Adsorption and Cooling Systems
- Structural Behavior of Reinforced Concrete
- Field-Flow Fractionation Techniques
- Solar Energy Systems and Technologies
- Building Energy and Comfort Optimization
- Fire effects on concrete materials
- Cellular and Composite Structures
- Solar-Powered Water Purification Methods
King Abdulaziz University
2020-2024
This paper reports an experimental investigation on continuous CO2 laser cutting of polymethylmethacrylate (PMMA) sheet. The influence four process factors (laser power, speed, assisting gas pressure and sheet thickness) five responses (kerf deviation, top heat affected zone, bottom maximum surface roughness rough area) has been investigated. plan was established based Taguchi L18 mixed design. kerf geometry zones have measured using polarising light microscopy technique, while the evaluated...
Residual stresses (RS) induced in machined components have substantial impact on the quality and lifetime of final products. There are several cutting parameters conditions that affect generation RS, so understanding relationship between RS those to minimize tensile is a crucial issue. This paper presents study utilization artificial intelligence-based methods model during dry turning DT4E pure iron. The experiments were designed based central composite design method. effects such as speed,...
This article presents a mathematical continuum model to analyze the free vibration response of cross-ply carbon-nanotube-reinforced composite laminated nanoplates and nanoshells, including microstructure length scale effects. Different shell geometries, such as plate (infinite radii), spherical, cylindrical, hyperbolic-paraboloid elliptical-paraboloid are considered in analysis. By employing Hamilton’s variational principle, equations motion derived based on hyperbolic sine function shear...
The present study demonstrates the free vibration behavior of composite laminated shells reinforced by both randomly oriented single-walled carbon nanotubes (SWCNTs) and functionally graded fibers. shell structures with different principal radii curvature are considered, such as cylindrical, spherical, elliptical–paraboloid shell, hyperbolic–paraboloid plate. volume fraction fibers has a linear variation along thickness from layer to layer, while CNTs is constant in all layers uniformly...
Abstract This study evaluated the mechanical properties of scrimber wood produced from date palm fronds and compared it to other wood-based materials. The raw materials for production were fronds. was using a fabrication process that included following stages: washing, cutting, burning, gluing pieces. results showed very similar those woods used same purpose. It found strong enough hold several heavy objects without deforming or breaking. In addition, no defects, such as cracks holes,...
The present paper investigates the response a sandwich composite laminate that involves intraply hybrid carbon fiber reinforced polymer (CFRP)/Dyneema core under impact and post-impact tests. This was designed to gain high elasticity stiffness/weight ratio of Dyneema fibers while maintaining structural integrity CFRP at core. Low-velocity compression after tests were employed evaluate damage resistance tolerance laminates. Micro-computed tomography deployed inspect different modes their...
The dynamic and flexural behavior of pultruded glass fiber reinforced polymer GFRP rebars were investigated after exposure to elevated temperatures ranging from room temperature 290 °C. cut grouped into two sets. first set contained the uncoated specimens, second enclosed specimens that had been coated with a gun-sprayed thin layer silicon matrix mixed ceramic nanoparticles as an insulation medium. All specimens’ performances experimentally performed heating them inside oven for 6 h later...