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Showing 1 to 20 of 24 for “"Fibre Reinforced Polymers"”.
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Strengthening of timber beams using externally-bonded sprayed fibre reinforced polymers
The use of Fibre Reinforced Polymers (FRP) has grown in popularity in the construction industry. FRP has proven useful in the retrofit of various types of structural elements. It may be used for the strengthening of beams, the seismic upgrade of walls panels, as well as the jacketing of columns to …
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Development of image based crack measurements, to investigate delamination in different weave Fibre Reinforced Polymers
… investigates the delamination dependence of fibre reinforced polymers, of different weave patterns, using an image-based crack measurement method. Glass fibre reinforce polymer (FRP) with three different weave pattern namely Unidirectional, Plain weave and Twill weave patterns were …
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Numerical study on shear strengthening of reinforced concrete (RC) deep beams with and without stirrups using near-surface mounted FRP bars
… technique for increasing the strength of reinforced concrete (RC) members. It is applied to strengthen or repair RC members. Fibre reinforced polymers (FRP) bars are commonly used through the NSM technique to strengthen RC members. However, limited studies on NSM strengthening using FRP …
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Developing new multiscale models for the numerical simulation of Pultruded GFRP Structural Elements
Pultruded Fibre-Reinforced Polymers (FRP) are innovative structural elements gaining popularity for various structural applications due to their unique properties, such as magnetic transparency and an excellent strength-to-weight ratio. These materials have been extensively studied through …
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Adhesive properties of thermoset fibre metal laminates
Fibre metal laminates (FMLs) are composite materials that consist of layers of metal and fibre reinforced polymers. FMLs are used in the construction of aircraft fuselage skins, such as the Airbus A380. GLARE, the only commercially available FML, is of particular interest due to its damage …
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A critical investigation of the use of infrared thermography in determining the condition of composite materials
… structures in aircrafts, especially the Carbon Fibre Reinforced Polymers (CFRP) in the late 1990’s, there has been increased use of these advanced materials that have completely replaced key metallic parts of the aircraft contributing to overall reduction in the weight of the aircraft. These …
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Nonlinear Finite Element Analysis of FRP Strengthened RC Beams under Static and Cyclic Loads
Fibre reinforced Polymers (FRPs) are being used increasingly in enhancing reinforced concrete structures in civil constructions due to their superior characteristics. A large number of experimental and numerical studies have been carried out on FRP strengthened RC beams in recent decades. However, …
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Behaviour of FRP strengthened RC Beams with concrete patch repairs subjected to impact loading
… performance levels and serviceability of reinforced concrete (RC) structures are always the priorities of asset managers, engineers and researchers in any country. RC structures in service may fail to adequately perform due to changes in functionality, corrosion attack on the reinforcing …
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Continuum Damage Mechanics to Model Glulam Beams Reinforced with Glued-In Steel Cables
… model the fibrous portion of timber, similar to Fibre Reinforced Polymers (FRPs), in the hopes of encouraging engineers to build sustainable structures with timber as the main structural material. The material model is implemented in the software ABAQUS using a User-Defined Material UMAT written …
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An economic evaluation on FRP for bridge construction in South African coastal areas
Fibre Reinforced Polymers (FRP) have been used for approximately 30 years as concrete strengthening materials in structural applications. This is primarily due to Steel Reinforced Concrete (SRC) being susceptible to the corrosion of reinforcing steel, especially in coastal environments. However, …
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Performance Evaluation of RC Flexural Elements Strengthened by Advanced Composites
… performance of composite systems made of reinforced concrete, Fibre Reinforced Polymers (FRPs) and adhesives was studied during the current research. The experimental investigation was principally concentrated on the potential use of Kevlar® 49 (aramid fibre) for RC beam strengthening. …
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Characterisation of Glass Fibre Polypropylene and GFPP based Fibre Metal Laminates at high strain rates
Fibre reinforced polymers (FRP) are finding increasing use in structures subjected to high rate loading such as blast or impact. Proper design of such structures requires thorough characterisation of the material behaviour over a range of loading rates from quasi-static to impact. This thesis …
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Zum Tragverhalten von Betonbauteilen mit Faserverbundkunststoff-Bewehrung
… load carrying behaviour of concrete members with Fibre Reinforced Polymers (FRP). Besides a detailed description of the FRP bars, which are used as non-prestressed reinforcement in concrete structures, this thesis contains the state of the art related to the experiments conducted within its scope. …
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Out of autoclave manufacturing of cfrps having multiscale reinforcement for improved interlaminar fracture toughness and multifunctional characteristics
Carbon fiber reinforced polymer (CFRPs) composites are increasingly used as advanced materials in many structural applications i.e. aerospace, automotive, marine etc. due to their superior in-plane mechanical properties, high specific strength and stiffness and corrosion resistance compared to …
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An analytical tool wear model for drilling of continuous fibre reinforced composites
Carbon fibre reinforced polymers (CFRP) are increasingly being used in aerospace structures due to high specific stiffness and good corrosion resistance. Drilling holes to facilitate the mechanical joining of CFRP to other, metallic components is a key operation during aircraft manufacture and high …
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The performance assessment of patch repaired and CFRP strengthened RC T-beams under transverse impact loading
… damaged bridge beams and the use of carbon fibre reinforced polymers (CFRP) has become an established alternative to traditional strengthening materials. However, rehabilitated bridge beams may still be susceptible to the same adverse loading conditions. The focus of the dissertation was to …
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Model updating of modal parameters from experimental data and applications in aerospace
… and locating delamination damages in carbon fibre reinforced polymers is introduced. The method is based on a correlation of damage-induced modal damping variations from an elasto-mechanic structure to the corresponding data from a numerical model in order to derive information on the damage …
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A CONCURRENT ENGINEERING DESIGN SYSTEM FOR POLYMERIC-BASED COMPOSITE AUTOMOTIVE COMPONENTS
… from the class of aramid, glass and carbon fibre reinforced polymers were proposed to be used in the decision. These materials must satisfy a set of predefined criteria, specifications and constraints in terms of performance, costs and manufacturability. The materials, that satisfied all …
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Effect of concrete heterogeneity on FRP-to-concrete bond behaviour
Fibre reinforced polymers (FRP) are widely used for strengthening or retrofitting deteriorated structures, due to their various advantages. In FRP-strengthened concrete structure, one of the main failure modes is the premature bond failure, which prevents the exploitation of the full capacity of …
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