Mohammed A. Alamir

ORCID: 0000-0002-3813-1773
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Research Areas
  • Fiber-reinforced polymer composites
  • Mechanical Behavior of Composites
  • Natural Fiber Reinforced Composites
  • Additive Manufacturing and 3D Printing Technologies
  • Structural Behavior of Reinforced Concrete
  • Tribology and Wear Analysis
  • Epoxy Resin Curing Processes
  • Electrospun Nanofibers in Biomedical Applications
  • Surface Modification and Superhydrophobicity
  • Bamboo properties and applications
  • Structural Load-Bearing Analysis
  • Carbon and Quantum Dots Applications
  • Lubricants and Their Additives
  • melanin and skin pigmentation
  • MXene and MAX Phase Materials
  • Mechanical stress and fatigue analysis
  • TiO2 Photocatalysis and Solar Cells
  • Smart Materials for Construction
  • Advanced Machining and Optimization Techniques
  • Biofuel production and bioconversion
  • Cellular and Composite Structures
  • Additive Manufacturing Materials and Processes
  • Electromagnetic wave absorption materials
  • Thermochemical Biomass Conversion Processes
  • Prenatal Screening and Diagnostics

Jazan University
2022-2024

King Khalid University
2024

Wichita State University
2017-2021

The non-biodegradable nature of waste emitted from the agriculture and industrial sector contaminates freshwater reserves. Fabrication highly effective low-cost heterogeneous photocatalysts is crucial for sustainable wastewater treatment. present research study aims to construct a novel photocatalyst using facile ultrasonication-assisted hydrothermal method. Metal sulphides doped carbon support materials work well fabricate hybrid sunlight active systems that efficiently harness green energy...

10.1038/s41598-023-36486-6 article EN cc-by Scientific Reports 2023-06-12

Spar caps, which cover 50% of the cost windmill blades, were made unidirectional and biaxial glass/carbon reinforcements 600 gsm with thicknesses ranging from 100 to 150 mm for blades 70-80 m long. The significance this study was utilize an economical biodegradable material i.e bamboo fabric 125 fabricate a lightweight composite its behavior spar caps applications. aim research investigate effect weave pattern size at coupon level under thermal, dynamic, water absorption, flammability...

10.1016/j.heliyon.2023.e12950 article EN cc-by-nc-nd Heliyon 2023-01-01

Abstract This work investigated the influence of carbon nanofibers (CNFs) and aggregate CNFs with micro‐sized short fibers (SCFs) on mechanical, thermal, fracture properties epoxy (80%) ‐ Polylactic acid (PLA) (20%) composite. Epoxy‐PLA composite loaded (0.2, 0.3, 0.4 wt.%) a combination SCFs (0.2 wt.% equal content each filler) were manufactured by sonication manual casting. The synergistic effects in matrix through mechanical characterization nanocomposites. In comparison to CNF‐reinforced...

10.1002/pc.27371 article EN Polymer Composites 2023-05-03

Abstract In the present investigation, moringa oleifera and bamboo fibers extracted from Ethiopia are studied to understand their mechanical properties. Three types of woven composites namely moringa/epoxy, bamboo/epoxy moringa/bamboo/epoxy (hybrid) fabricated by maintaining 60 vol% fiber content. Additionally, neat epoxy samples prepared for comparison. Tensile flexural properties investigated in terms strength modulus. test results depict brittle failure all infer increase fracture strain...

10.1002/pc.27384 article EN Polymer Composites 2023-05-03

Polyester fibers (PEF) were successfully coated with Polyaniline (PANI) via in situ polymerization to make electrically conductive (ECF). X-ray diffraction (XRD) analysis confirms the synthesis and scanning electron microscopy (SEM) coating of PANI on surface PEF. Both uncoated tested for their DC conductivity, results showed a clear difference between two. From highly insulating state, it transitions about 0.1 S/cm. tensile strength modulus seemed rise, going from 0.5 MPa 2.5 0.04 0.4 MPa,...

10.1016/j.jmrt.2023.01.101 article EN cc-by Journal of Materials Research and Technology 2023-01-26

Quasi static compressive response of crumb rubber-epoxy composites was examined by varying the rubber composition (0, 10, 20 and 30 vol.%). All composites, irrespective strain rates, depict elastic regions tailed a wide plateau area that is credited with densification particulates. Higher strains to failure were revealed as compared neat epoxy signifying higher energy absorption ability constituents. The modulus elasticity noted be lower than specimens, rates. Irrespective strength all...

10.1177/09673911231158995 article EN cc-by-nc Polymers and Polymer Composites 2023-02-24

Abstract Novel composite comprising of Kulkual fibers and Titanium diboride (TiB 2 ) filler reinforced epoxy composites is investigated in the current work. also known as Opuntia ficus‐indica a plant abundantly found throughout Ethiopia are utilized form combination with TiB reinforcement to synthesize matrix composites. Six types including neat fabricated using varying content (0, 2.5, 5, 7.5, 10 vol%) fixed 5 vol%. The were obtained by drying leaf‐like stem collecting skeleton structure...

10.1002/pc.27386 article EN Polymer Composites 2023-05-02

Extensive amount of research on additively manufactured (AM) lattice structures has been made to develop a generalized model that can interpret how strongly operational variables affect mechanical properties. However, the currently used techniques such as physics models and multi-physics simulations provide specific interpretation those qualities, are not general enough assess properties AM different topologies produced materials via several fabrication methods. To tackle this problem, study...

10.3390/mi14010075 article EN cc-by Micromachines 2022-12-27

Sickle cell disease (SCD) is a genetic blood disorder that affects hemoglobin and increases stroke risk, particularly in childhood. This review examines the pathophysiological association between SCD stroke, classification of types, risk factors, diagnosis, management, prevention, prognosis. A comprehensive literature search was conducted via PubMed, Scopus, Cochrane databases. Relevant studies on pathophysiology, classification, epidemiology, treatment, prevention were identified. causes...

10.7759/cureus.50577 article EN Cureus 2023-12-15

Carbon fiber–reinforced composites (CFRCs) have been used extensively in structural applications within the aerospace and automotive manufacturing industries. However, several other recognized. These take advantage of additional properties CFRCs, which lead to providing better performance for structures. their service environment, these CFRCs are inevitably susceptible impact damage from multiple sources, they must be able recover impacts meet requirements. This study directs an experimental...

10.1177/00219983211058796 article EN Journal of Composite Materials 2021-12-09

Circular hollow steel tube columns are widely used in high-rise buildings and bridges due to their ductility lower weight compared reinforced concrete. The use of this type section has several advantages over using concrete members. present study investigates the bending behavior circular sections when subjected loads. variations material characteristics with regard position along cross-section a member is first considered experimental study, providing for more accurate definition model. A...

10.3390/ma15113919 article EN Materials 2022-05-31

The present study aimed at evaluating the mechanical performance under bending loads of circular hollow sections steel. Different tests have been carried out by applying two-point loads, to determine and examine effects diameter, thickness section, span beam on steel tube. square opening variation in number openings these also examined. Ten samples beams varying (2 mm, 3 6 mm), diameter (76.2 101.6 219 (1000 1500 2000 mm) were fabricated tested for pre-failure post-failure stages. dimensions...

10.3390/ma15124350 article EN Materials 2022-06-20

Adhesives are widely utilized materials in aviation, automotive, energy, defense, and marine industries. Adhesive joints gradually supplanting mechanical fasteners because they lightweight structures, thus making the assembly lighter easier. They also act as a sealant to prevent structural joint from galvanic corrosion leakages. bonds provide high strength of fact that load is distributed uniformly on surface, while joints, concentrated at one point, leading stress point turn causing...

10.1117/12.2296653 article EN 2018-03-22

Because of the superior properties, composites have been used in many industrial applications, including aerospace, wind turbines, ships, cars, fishing rods, storage tanks, swimming pool panels, and baseball bats. Each application may require different combinations reinforcements matrices, which make manufacturing safety even more challenging while working on these substances. In this study, issues composite machining were investigated detail, latest developments provided for workers. The...

10.1117/12.2296707 article EN 2018-03-22

One of the most environmental concerns is climate change because greenhouse gasses, such as CO<sub>2</sub>, N<sub>2</sub>O, CH<sub>4</sub>, and fluorinated gases. The big majority CO<sub>2</sub> coming from burning fossil fuels to generate steam, heat power. In order address some major fuels, a number different alternatives for renewable energy sources have been considered, including sunlight, wind, rain, tides geothermal biomass. present study, two biomass products (three leaves grasses)...

10.1117/12.2268913 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2017-04-19

Fiber reinforced polymer (FRP) composites provide a lot of benefits, including strength-to-weight ratio / light weight, superior mechanical properties, low maintenance, prolonged service life, as well corrosion, fatigue and creep resistance. However, sustainability the FRP have not been studied in detail terms long term productions various industries, such aerospace, wind energy, automotive defense. Carbon fibers are relatively expensive because energy intensive production systems, lack easy...

10.1117/12.2296785 article EN 2018-03-22

Over the last few years, tremendous amount of research efforts has been conducted on 3D printing materials, methods and systems. Various printer materials in different size, shape geometry can be used for advanced designs, modeling, manufacturing industrial applications. In present study, dog bone specimen was designed via a CATIA CAD model, then printed by using polymeric filament (acrylonitrile butadiene styrene - ABS). Some prepared samples were heat treated at 40 °C, 60 80 °C 30 minutes,...

10.1117/12.2267719 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2017-04-17

High temperature applications of materials have been increasing for various industrial applications, such as automobile brakes, clutches and thrust pads. The big portion these are made out the polymeric with reinforcements. In present study, high were incorporated SiC whiskers chopped carbon fibers at 0, 5, 10 20wt.% molded into desired size shape prior to curing process. These inclusions selected because their mechanical strengths thermal conductivity values easily dissipate frictional heat...

10.1117/12.2267717 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2017-04-17
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