Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Environmental Durability"”.
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Environmental durability of FRP bond to concrete subjected to freeze-thaw action
… study was performed to determine the environmental durability of the adhesive bond between fiber-reinforced plastic (FRP) and concrete. The study specifically focused on freeze-thaw cycling exposure of such bonds and their ultimate strength prior and after the environmental exposure. …
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Effect of roughness, microstructure, and chemistry on the environmental durability of structural alloys
… limited to excellent mechanical properties and environmental tolerance. However, more often than not, the metallurgical principles used to improve mechanical properties result in a decrease in the environmental tolerance. Though it is difficult to design materials that can thrive in extreme …
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Non-woven, recycled carbon fibre composites : development of test methods and assessment of process parameters
… encompassing tension, shear, fatigue and environmental durability of particular recycled carbon fibre/epoxy composites was undertaken. The project also assessed the effect of fundamental recycling process variables on moulded composite static and fatigue behaviour. It was found that the …
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Material Selection for an Electric Motor Assisted Stroller
… include things such as corrosion resistance, environmental durability, machining cost, price, and thermal properties.</p> <p> All the gathered factors and data were then used to compare potential materials found using CES EduPack’s material database. A single material was then chosen for each …
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On Physics of Durable Ice Phobic Surfaces
… and subsequent ice accretion, low mechanical durability, and high production cost have restricted their practical applications. A comprehensive definition for icephobicity through thermodynamics, heat transfer and mechanics of ice/water-material interface and elucidate physic-based routes was …
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Effect of manufacturing process conditions on the durability of pultruded vinyl ester/glass composites
… an increased role in structural applications. Environmental durability is important for the design of structural components. Processes such as pultrusion are cost-effective methods of producing FRPs. This research focused on the durability of pultruded FRP with different processing conditions. …
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Mechanical property characterization of recycled thermoplastics
… mechanical property retention and environmental durability are very important for infrastructure and automotive applications. The resins alone do not have the strength or stiffness to meet the requirements of certain automobile or construction applications. Hence, to obtain improved …
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Inter-Relationships Between Chemistry, Network Structure and Properties of Chain Growth Dimethacrylate Thermosets
… and Mc. Due to the need for long-term composite environmental durability, the effects of moisture and exposure to sunlight are important. Thus, these materials were exposed to ultraviolet light on a rotating drum for 225 days and the exposure was carefully monitored. Initial results from this …
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New Fatigue Test Method for Evaluating the Performance of Adhesive Bonded Joints
As a result of environmental goals, global manufacturer's and suppliers of materials and engineering components across industries have been challenged to reduce structural weight, materials use, and manufacturing costs, while ensuring quality standards and safety requirements. In order to address …
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Topographic and Surface Chemical Aspects of the Adhesion of Structural Epoxy Resins to Phosphorus Oxo Acid Treated Aluminum Adherends
… of two factors determines the strength and environmental durability of epoxy-bonded aluminum. One is the formation of hydrolytically stable, primary bonds between the adhesive and the adherend, and the second is the hydrolytic stability of the surface oxide, which is always present on the …
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Durability of Polymer Matrix Composites for Infrastructure: The Role of the Interphase
… viscoelastic relaxation to enviro-mechanical durability. Chapter 1 deals with the influence of the sizing material on the fatigue response of cross ply composites made with the help of resin infusion molding. Chapter 2 describes the effects of a controlled set of interphase polymers that have …
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Simulation of Enviro-mechanical Durability for Life Prediction of E-Glass/Vinyl Ester Composites using a Bridge Service Environment
… infrastructure application, life prediction and durability must be understood. The majority of studies have examined the strength and fatigue response of composites under hot and/or moist conditions. Various researchers have also studied life prediction methods for composite materials under …
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An interdisciplinary study of cathodic debonding in elastomer/metal adhesive bonds
An interdisciplinary study concerning the durability of adhesively elastomer/metal bonded joints in marine environments is reported. The generation of OH⁻ ions at the bondline due to an imposed cathodic current from an external source is suspected to be the predominant cause of failure. A surface …
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Adhesive bonding of stainless steel :Sstrength and durability.
… and primer thickness. In order to assess the environmental durability of adhesive joints, lap shear and peel tests were conducted after ageing in ambient and high humidity environments. To compliment the data, Boeing wedge crack extension tests were also carried out on adhesive bonded joints …
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Adhesive bonding of stainless steel : strength and durability
… and primer thickness. In order to assess the environmental durability of adhesive joints, lap shear and peel tests were conducted after ageing in ambient and high humidity environments. To compliment the data, Boeing wedge crack extension tests were also carried out on adhesive bonded joints …
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Durability of Advanced Woven Composites in Aerospace Applications
… and combined hygrothermal aging on the durability of a graphite/epoxy woven composite material system. Imposed environmental and aging conditions were considered to be representative of service conditions for the engine of an advanced subsonic aircraft for which the composite system is a …