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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 20 of 38 for “"fiber-reinforced polymer composites"”.
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Creep behavior of natural fiber reinforced polymer composites
Creep behavior of natural fiber/polymer composites (NFPCs) was studied in response to the increasing application of this material as structural building products. Factors that influence creep behavior of the composites were investigated by analyzing creep curves of several different NFPC systems, …
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New generation fiber reinforced polymer composites incorporating carbon nanotubes
… last five decades observed an increasing use of fiber reinforced polymer(FRP) composites as alternative construction materials for aerospace and infrastructure. The high specific strength of FRP attracted its use as non-corrosive reinforcement. However, FRP materials were characterized with a …
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Fatigue, Fracture and Impact of Hybrid Carbon Fiber Reinforced Polymer Composites
… the ease of manufacturing have made the carbon fiber reinforced polymer composites (CFRPs) suitable structural materials for variety of applications such as aerospace, automotive, civil, sporting goods, etc. Despite the outstanding performance of the CFRPs along their fibers direction (on-axis), …
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Thermally-assisted frontal polymerization for rapid curing of fiber-reinforced polymer composites
Fiber-reinforced polymer composites (FRPCs) are widely used in a variety of applications owing to their excellent specific mechanical properties, chemical stability, and fatigue resistance. However, the state-of-the-art technologies for manufacturing FRPCs are intensive in terms of time and energy, …
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Additive manufacture of dissolvable tooling for autoclave processing of fiber reinforced polymer composites
Autoclave processing of advanced fiber reinforced polymer composites (AFRPC) uses applied heat and pressure to yield high quality composite components. Geometrically accurate and thermally stable molds or tools are used to maintain the part form until the part cures and rigidizes. For high-volume …
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Predictions of Monotonic Tensile Stress-Strain Curves of Short Fiber Reinforced Polymer Composites
… monotonic tensile stress-strain curves of short fiber reinforced polymer composites with different fiber orientation distributions is developed.
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Multi-hazard performance of bridge timber piles retrofitted with fiber reinforced polymer composites
… have focused on every aspect of conventional reinforced concrete or steel bridges, research activity on timber bridges has been almost non-existent. Given ever increasing demands on bridges and interest in sustainable, resilient structures, the time is now to close the gap. The first part of …
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Nanomaterial-Enabled Out-of-Autoclave and Out-of-Oven Manufacturing of Fiber Reinforced Polymer Composites
Fiber reinforced polymer composite materials have been a staple of the aerospace industry, integral to creating lightweight flight vehicles due to their high specific material properties. These materials often come in a prepreg form, where microfibers are pre-impregnated with a polymer matrix to …
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Interfacial Adhesion Evaulation of Uniaxial fiber-Reinforced-Polymer Composites by Vibration Damping of Cantilever Beam
The performance of fiber-reinforced composites is often controlled by the properties of the fiber-matrix interface. Good interfacial bonding (or adhesion), to ensure load transfer from matrix to reinforcement, is a primary requirement for effective use of reinforcement properties. Thus, a …
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Fundamental Behavior of Nanoporous Networks in the Out-of-Autoclave Manufacturing of Carbon Fiber Reinforced Polymer Composites
Throughout the aerospace industry, carbon fiber reinforced polymer (CFRP) laminated composites are used extensively in spacecraft and aircraft vehicles due to their high specific strength and stiffness and other properties. Processing these advanced structural CFRP composites, especially in prepreg …
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Multiscale Modeling of CNT-Polymer Nanocomposites and Fuzzy Fiber Reinforced Polymer Composites for Strain and Damage Sensing
It has been observed that carbon nanotube (CNT)-polymer nanocomposite material has observable piezoresistive effect, that is to say that changes in applied strain may induce measurable changes in resistance. The first focus of the work is on modeling the piezoresistive response of the CNT-polymer …
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Development of technical bases for using infrared thermography for nondestructive evaluation of fiber reinforced polymer composites bonded to concrete
Fiber-reinforced polymer (FRP) composites, in the form of pultruded laminates or built-up woven fabrics, are being used widely to strengthen existing concrete and masonry structures. The success of these materials in performing their intended functions depends, to a large extent, on how well they …
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Reliability based design methodology incorporating residual strength prediction of structural fiber reinforced polymer composites under stochastic variable amplitude fatigue loading
… focus is on fatigue analyses for axially loaded fiber reinforced polymer (FRP) composites that contain a significant proportion of fibers in the loading direction and thus have fiber-direction dominated failure. The four papers presented in this dissertation describe the logical progression used …
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Interactions and orientation in concentrated suspensions of rigid rods: Theory and experiment
A theory for the processing-induced fiber orientation and stress in fiber reinforced-polymer composites is presented. Short-fiber-reinforced polymer composites are represented by concentrated suspensions of rigid rods. In concentrated suspensions, fiber-fiber contact is likely and affects the fiber …
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Electrospun Nanofiber Reinforced Composites: Fabrication and Properties
… research related to the use of electrospun nanofibers for reinforcement of mechanical properties of polymers, like thermoplastic polyurethane (TPU), melamine-formaldehyde (MF) and polyimide (PI). Nylon-6 and PI electrospun nanofibers are excellent candidates for reinforcement purposes as they …
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Acoustic emission evaluation of FRP composite specimens in tension and bending
Fiber Reinforced Polymer composites are relatively new to the bridge construction industry. One of the challenges to greater usage is the lack of a nondestructive method to accurately evaluate them. Nondestructive evaluation of FRP composite structures using Acoustic Emissions was conducted. Seven …
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Effects of Shallow Bi-Angle, Thin-Ply Laminates on the Structural Performance of Composite Wings
… shallow bi-angle, thin-ply laminates bring to fiber reinforced polymer composites. Coupon- and structural-level tests are conducted along with numerical simulations. According to the coupon tests, we find that shallow bi-angle fibers and thin plies can increase the axial stiffness of laminates …
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Self-healing of delamination damage in glass/epoxy composites using catalyst functionalized fibers
The use of polymer matrix fiber-reinforced composites in structural applications is growing because of the excellent specific strength and stiffness of these materials. Their wide spread acceptance, however, has been limited in some areas because of susceptibility to damage from impact events in …
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