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Showing 1 to 20 of 44 for “"hybrid composite"”.
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Analytical modeling of hybrid composite beams
… an analytical model to explain the behavior of a hybrid structure under different loading conditions. The model developed for a simply supported beam on moment capacity, stiffness, and deflection can be generalized to deal with any type of material combination. The dependence of moment capacity of …
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Nondestructive evaluation for hybrid-composite girder bridges
… tools for the fabrication and construction of Hybrid Composite Beams (HCBs), a relatively new bridge technology currently being evaluated by the Missouri Department of Transportation (MoDOT). The HCBs are comprised of a rectangular fiber reinforced polymer (FRP) shell enclosing a concrete arch …
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Experiments on a Hybrid Composite Beam for Bridge Applications
… details a study of the structural behavior of Hybrid-Composite Beams (HCB) consisting of a fiber reinforced polymer (FRP) shell with a concrete arch tied with steel prestressing strands. The HCB offers advantages in life cycle costs through reduced transportation weight and increased corrosion …
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Multi-functional SMA hybrid composite materials and their applications
… By embedding SMA elements into host composite materials, control or modification of the SMA hybrid composite’s structural properties can be accomplished in-service, thereby increasing the hybrid composite’s structural functionality. Previous studies addressed increasing composite …
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Impact Damage Resistance of Shape Memory Alloy Hybrid Composite Structures
… SMA. The nonlinear equations for SMA hybrid composite plates, which can be used for low velocity impact or quasi-static contact loading, are derived. The governing equations include the transverse shear deformation to the first-order, large deformation of the plates, and SMA/epoxy …
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Structural acoustic analysis of shape memory alloy hybrid composite panels
Shape memory alloy (SMA) hybrid adaptive composites are a class of materials which combine the strain recovery and elastic properties transformation capabilities of SMA fibers with the structural characteristics of advanced composite materials. This study utilizes the Rayleigh-Ritz method and …
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Fatigue performance of nanoclay filled glass fiber reinforced hybrid composite laminate
Submitted in fulfilment of the requirements for the degree of Master of Engineering: Mechanical Engineering, Durban University of Technology, Durban, South Africa, 2017.
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Evaluation of Hybrid-Composite Beam for Use in Tide Mill Bridge
A test program for the Hybrid-Composite Beam (HCB) was conducted prior to its use for the replacement of a skewed, simply-supported bridge (Tide Mill Bridge). The HCB is an innovative combination of conventional materials and ideas in a structural beam. The beam consists of a concrete arch tied …
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Analysis of a hybrid composite pressure vessel using multi-scale computed tomography techniques
… methods. Whilst fibre breaks are the dominant composite damage mechanism considered in the work, matrix damage was also seen to occur in advance of extensive fibre breaks. The formation of clusters of broken fibres were observed at high loads in both sample types. The largest clusters were …
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Colour changes in nano-filled and micro-hybrid composite resins on exposure to spices.
Colour changes in composite resins after immersion in beverages such as coffee, tea, alcohol beverage and carbonated drinks have been reported. Although much work has been done to determine the staining susceptibility of composite resins to various liquid beverages, effects of spices on colour …
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A Predictive Methodology for Soft Impact Damage in Jet Engines Incorporating Hybrid Composite Structures
… advanced jet engine forward sections, containing hybrid and composite structures, when subjected to soft impact. Bird strike onto the fan assembly is chosen as the impact event to be studied. The aim is to develop a numerical methodology capable of accurately capturing the full range of …
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Development of Multidisciplinary Design Optimization Process for a Large Scale Hybrid Composite Wind Turbine Blade
… design optimization (MDO) of a large scale hybrid composite wind turbine blade is performed. Multiple objectives are considered in the MDO process to maximize annual energy production and lifetime profit, minimize weight and power production rate. A wind turbine blade is divided into regions …
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Determination of the Design Parameters for the Route 601 Bridge: A Bridge Containing the Strongwell 36 inch Hybrid Composite Double Web Beam
… determine if a bolted connection could develop composite action between the girder and the deck. This connection was shown to provide a significant amount of composite action when used with the 8 in. DWB and a composite deck, but little or no composite action when used with the 36 in. DWB and a …
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The Effect of Atmospheric Aging on a Hybrid Polymer Matrix Composites' Material Properties
… exposure of the load bearing unidirectional hybrid composite (based upon glass and carbon fibers reinforcing a high temperature epoxy matrix) of a next generation transmission line design were investigated in this research. In particular, the flexural performance (in both static and fatigue …
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Characterization of composites with aligned carbon nanotubes (CNTs) as reinforcement
… properties make them ideal candidates for composite reinforcement. Nanocomposites and hybrid composite architectures employing traditional advanced composites and CNTs offer significant potential mechanical and multifunctional performance benefits. CNT/polymer composites and two different …
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Aging of a Polymer Core Composite Conductor Under Combined Ozone and Temperature Conditions
… generation High Temperature Low Sag Polymer Core Composite Conductors (HTLS PCCC) can experience harsh in-service environments including high temperature and highly concentrated ozone. In some extreme cases, it is possible that the conductors will experience temperatures of up to 180°C and ozone …
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Hybrid Carbon Fiber/ZnO Nanowires Polymeric Composite for Stuctural and Energy Harvesting Applications
… of carbon fiber reinforced polymers (FRPs) composites, they are prone to failure due to delamination. The ability to tailor the fiber/matrix interface FRPs is crucial to the development of composite materials with enhanced structural performance. In this dissertation, ZnO nanowires (NWs) …
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Monitoring of Overhead Polymer Core Composite Conductors Under Excessive Mechanical Loads Using Fiber Bragg Grating Sensors
… Low Sag (HTLS) transmission line polymer core composite conductors. The developed methodology was successfully applied to ACCC® to explain the complex failure mechanisms associated with combined bending and tension loading. Furthermore, the use of Fiber Bragg Grating (FBG) sensors was …
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