College of Engineering: Recent submissions
Now showing items 2361-2380 of 8384
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Numerical simulation of the fracture and compression response of self-healing concrete containing engineered aggregates
( Elsevier , 2023 , Article)The existing self-healing concretes that rely on capsules require modifications to one or more traditional concrete mixing, placing, and consolidating methods. Additionally, concrete mixture designs need alterations to ... -
Synthesis and electrochemical characterization of Cr-doped lithium-rich Li1.2Ni0.16Mn0.56Co0.08-xCrxO2 cathodes
( Springer Nature , 2018 , Article)Lithium-rich layer oxide, Li1.2Ni0.16Mn0.56Co0.08O2 (NMC), is a potential cathode candidate for high-energy density batteries. Issues such as cycling stability, rate performance, and cost are yet to be overcome before ... -
Processing and characterization of palm fiber-polypropylene composites
( Trans Tech Publications Ltd , 2011 , Conference Paper)Composites of palm fiber and polypropylene were compounded using a mixing device at various temperatures, mixing times, and mixing intensities. Two mixing options were utilized. Either the mixing device was mounted with a ... -
Second law analysis of a gravity-driven liquid film flowing along an inclined plate subjected to constant wall temperature
( Inderscience Publishers , 2014 , Article)The second law analysis of a gravity-driven liquid having temperature-dependent viscosity and flowing along an inclined heated plate was studied. The computational fluid dynamics (CFD) package FLUENT was used to obtain the ... -
Influence of pH on chloride binding isotherms for cement paste and its components
( Elsevier , 2021 , Article)In this paper, chloride (Cl−) binding isotherms are developed for cement hydration compounds, specifically, calcium-silicate-hydrates (CSH) and AFm phases including mono-sulfate aluminate, hydroxy-AFm, monocarbonate-AFm, ... -
Life cycle assessment of particulate recycled low density polyethylene and recycled polypropylene reinforced with talc and fiberglass
( Trans Tech Publications Ltd , 2011 , Conference Paper)Although recycled polymers and reinforced polymer composites have been in use for many years there is little information available on their environmental impacts. The goal of the present study is to analyze the environmental ... -
A review on composite materials based on recycled thermoplastics and glass fibres
(2011 , Article Review)Mechanical properties The purpose of this paper is to review recent work on composite materials based on recycled thermoplastics and glass fibres (GFs). The high collection and separation cost of plastics waste, and the ... -
Durability characteristics of high and ultra-high performance concretes
( Elsevier , 2021 , Article)Durability characteristics of high-performance concrete (HPC) and ultra-high performance concrete (UHPC) are evaluated in comparison to normal strength concrete (NSC). HPC and UHPC are cast using commonly available materials ... -
Bond performance of tensile lap-spliced basalt-FRP reinforcement in high-strength concrete beams
( Elsevier , 2022 , Article)This paper investigates the bond between high-strength concrete (HSC) and tensile lap-spliced basalt fiber-reinforced polymer (BFRP) bars. Ten large-scale BFRP-reinforced concrete beams (300 x 450 x 3900 mm) were fabricated ... -
Electrochemical behavior of mild and corrosion resistant concrete reinforcing steels
( Elsevier , 2020 , Article)An experimental study is carried out in this paper to evaluate the corrosion performance of mild steel reinforcing bars (MS), high strength steel reinforcing bars (HS), epoxy-coated steel reinforcing bars (EC), and ... -
An Overview of Solid Waste Management and Plastic Recycling in Qatar
(2012 , Article)Municipal solid waste management (MSWM) constitutes one of the most crucial health and environmental problems facing authorities in the Arabian Gulf. Recent literature on current solid waste management (SWM) in Qatar has ... -
Corrosion Behavior of Corrosion-Resistant Steel Reinforcements in Normal-Strength and High-Performance Concrete: Large-Scale Column Tests and Analysis
( American Concrete Institute , 2022 , Article)This paper presents the findings of a systematic comparison of the corrosion behavior of corrosion-resistant steel reinforcements, including epoxy-coated steel, high-chromium steel, and stainless steel reinforcement in ... -
Corrosion of inhibitor treated mild steel immersed in distilled water and a simulated salt solution
(2013 , Article)The purpose of this study was to investigate the performances of three inhibitors in controlling corrosion of local mild steel products in distilled water and a simulated salt solution. Corrosion inhibition of mild steel ... -
Environmental degradation of 30 to 50 years old reinforced concrete structures in Qatari climate
( Advanced Engineering Solutions , 2017 , Conference Paper)This paper presents the results of a field survey carried out on three reinforced concrete (RC) structures built respectively in 1960's 1970's and 1980's to determine the main load (environmental) and resistance (concrete ... -
Thermo-mechanical vibration of rotating axially functionally graded nonlocal Timoshenko beam
( Springer Verlag , 2017 , Article)The free vibration analysis of rotating axially functionally graded nanobeams under an in-plane nonlinear thermal loading is provided for the first time in this paper. The formulations are based on Timoshenko beam theory ... -
Small scale effects on transient vibrations of porous FG cylindrical nanoshells based on nonlocal strain gradient theory
( Springer Science and Business Media Deutschland GmbH , 2020 , Article)This research investigates transient vibrational characteristics of a porous functionally graded cylindrical nanoshell under different impulsive loadings with the use of nonlocal strain gradient theory (NSGT). Based on ... -
Post-buckling analysis of geometrically imperfect tapered curved micro-panels made of graphene oxide powder reinforced composite
( Techno-Press , 2020 , Article)The present research investigates post-buckling behavior of geometrically imperfect tapered curved micro-panels made of graphene oxide powder (GOP) reinforced composite. Micro-scale effects on the panel structure have been ... -
Post-buckling of higher-order stiffened metal foam curved shells with porosity distributions and geometrical imperfection
( Techno Press , 2020 , Article)Based on third-order shear deformation shell theory, the present paper investigates post-buckling properties of eccentrically stiffened metal foam curved shells/panels having initial geometric imperfectness. Metal foam is ... -
Nonlinear vibrations of variable thickness curved panels made of multi-scale epoxy/fiberglass/CNT material using Jacobi elliptic functions
( Taylor and Francis Ltd. , 2022 , Article)This article deals with nonlinear vibration study of variable thickness cylindrical panels made of multi-scale composite materials containing epoxy matrix, glass fibers, and carbon nanotubes (CNTs). The elastic properties ... -
Malicious uav detection using integrated audio and visual features for public safety applications
( MDPI AG , 2020 , Article)Unmanned aerial vehicles (UAVs) have become popular in surveillance, security, and remote monitoring. However, they also pose serious security threats to public privacy. The timely detection of a malicious drone is currently ...
