نتایج جستجو برای: frp composites
تعداد نتایج: 48710 فیلتر نتایج به سال:
Multifunctional fiber-reinforced polymer (FRP) composites provide an ideal platform for next-generation smart applications including structural health monitoring, electrical and thermal conductivity, energy storage harvesting, electromagnetic interference shielding without compromising their mechanical properties. Recent progress in carbon-based nanomaterials such as graphene carbon nanotubes (...
This paper presents a study of the shear capacity reinforced concrete (RC) beams strengthened in with externally bonded (EB) fiber polymer (FRP) composites, based on performance existing published tests. The main objective this is to create comprehensive overview different strengthening configurations and failure modes observed experimental In addition, influence following parameters efficiency...
Enhancement of the response of reinforced concrete (RC) beams using fiber-reinforced polymer (FRP) reinforcement bars has become a popular structural technique over the past two decades due to the well-known advantages of FRP composites including their high strength-to-weight ratio and excellent corrosion resistance. Thisstudy presents n...
This paper reviews Fibre Reinforced Polymer (FRP) composites in Civil Engineering applications. Three FRP types are used Structural Engineering: profiles for new construction, rebars and strengthening systems. Basic materials (fibres resins), manufacturing processes material properties discussed. The focus of the is on all-FRP new-build structures their joints. All-FRP use pultruded profiles. T...
In this paper, a model for the prediction of fatigue life degradation fiber-reinforced (FRP) composite materials exposed prolonged periods to real marine environments is proposed. The data collected during previous phases more comprehensive research environment-induced changes mechanical properties in FRP composites are used assess influence these on durability characteristics composites. Atten...
A Model to Predict the Long-Term Strength of E-Glass Fiber Composites Subjected to Environmental Exposure Thomas Miles Damiani Glass Fiber Reinforced Plastics (FRP) are being used in an increasing number of structures and machines because of their advantages over conventional materials such as steel or aluminum. However, sustained exposure to seemingly nominal service conditions can act to degr...
Standoff methods of non-destructive testing (NDT) offer flexibility over traditional methods of inspection which typically require physical contact with the material being measured. The benefits are that difficult to access locations can be inspected and measurements of a large area can be made more quickly. Acoustic-laser vibrometry is a robust standoff NDT technique for composite materials, s...
Jacketing technology using fiber reinforced polymer (FRP) composites is being applied for seismic retrofit of reinforced concrete (RC) columns designed and constructed under older specifications. In this study, the authors develop an electromagnetic (EM) imaging technology for detecting voids and debonding between the jacket and the column, which may significantly weaken the structural performa...
Recent efforts in the United States have led to the standardization of test methods for FRP composites for reinforcing and repairing concrete. These efforts are transitioning standards, originally published by the American Concrete Institute (Committee 440K), as ASTM standards under ASTM Committee D30, Composite Materials. One of the methods recently published involves the transverse shearing o...
Fiber reinforced polymer (FRP) composites have been steadily replacing metals as choice engineering materials for various applications. Although FRPs can be manufactured to near-net shape, post processing operations such as machining are required to create some features (such as holes). In order to drill holes efficiently with the least waste and defects, it is essential to understand the machi...
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