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Showing 1 to 20 of 62 for “"Carbon Fiber Reinforced Polymer"”.
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Epoxy-clay nanocomposite for carbon fiber reinforced polymer applications
Carbon fiber reinforced polymer (CFRP) composites have been utilized in rehabilitation and strengthening of civil infrastructure, and fabrication of aerospace, automotive and marine structural components. This is attributed to the high strength-to-weight ratio and durability of CFRP. However, for …
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Carbon Fiber Reinforced Polymer Repairs of Impact-Damaged Prestressed I-Girders
Three different Carbon Fiber Reinforced Polymer (CFRP) repair techniques are examined to determine how effectively each method can restore the ultimate flexural capacity of impact-damaged prestressed concrete girders. The number of severed prestressing strands and the amount of CFRP repair material …
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Shear strengthening of RC beams using carbon fiber reinforced polymer laminates
… in flexure rather than in shear. Many existing reinforced concrete (RC) members are found to be deficient in shear strength and need to be repaired. Deficiencies occur due to several reasons such as insufficient shear reinforcement or reduction in steel area due to corrosion, increased service …
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Reliability Analysis of Carbon Fiber Reinforced Polymer (CFRP) Strengthened Steel Beams
… the behavior of bonded joints between steel and carbon fiber reinforced polymers (CFRP) with an emphasis on understanding the role of the adhesive mechanical properties and the surface preparation techniques used to produce the joints. Reliability analysis of adhesively bonded CFRP-to-steel …
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Fatigue, Fracture and Impact of Hybrid Carbon Fiber Reinforced Polymer Composites
… well as 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 …
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Isolation and transmissibility of shipboard equipment with carbon fiber reinforced polymer mount
… of three different materials were considered: carbon fiber reinforced material (CFRP), steel, and rubber. These isolator pads were paired with two pieces of equipment. The first was a marine diesel engine with a relatively large mass and internal rotation. The second piece of equipment was an …
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3D Deep Learning Segmentation for Fiber Break Analysis of Carbon Fiber Reinforced Polymer Tomograms
Carbon fiber reinforced polymers (CFRPs) find extensive use in modern aerospace structures due to their adaptability in stiffness and strength for specialized applications. However, their heterogeneous composition and the microscopic scale of fiber and matrix lead to complex damage mechanisms, as …
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Experimental Strength Characterization of Epoxy Double Lap Joint for Carbon-Fiber Reinforced Polymer Tube
… spindle-wound tubes and machined forged carbon fiber. An assembly of aluminum parts was designed and fabricated to hold the samples in an Instron universal testing machine for gathering of force-extension measurements as the joints were tested to failure. The stiffness of the …
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Carbon Fiber Reinforced Polymer Retrofits to Increase the Flexural Capacity of Deteriorated Steel Members
… to conventional retrofits is the use of carbon fiber-reinforced polymer (CFRP) laminates, which can be adhered to increase both strength and stiffness. CFRPs are a highly tailorable material with an extremely high strength-to-weight ratio, ease of installation and can potentially mitigate …
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Delamination damage of carbon fiber-reinforced polymer composite laminates under cyclic shear-induced loading conditions
… in-plane shear stress frequently encountered in carbon fiber-reinforce polymer (CFRP) composite laminates structures. This failure process under monotonic loading has been successfully described using cohesive zone model (CZM). Many previous CZM approaches for cyclic case were considering damage …
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Design and Additive Manufacturing of Carbon-Fiber Reinforced Polymer Microlattice with High Stiffness and High Damping
Carbon fiber reinforced polymer (CFRP) composites are known for their high stiffness-to-weight and high strength-to-weight ratios and hence are of great interest in several engineering fields such as aerospace, automotive and defense. However, despite their light weight, high stiffness and high …
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Guided Wave Actuation for Enhanced Damage Identification in Carbon Fiber Reinforced Polymer Material Using Electrical Resistance Tomography
<p>Carbon fiber reinforced polymer composites (CFRP) are prone to delamination damage which leads to the reduction in the mechanical performance of aerospace structures. Electrical Resistance Tomography (ERT) is a non-destructive evaluation technique that uses surface voltage measurements with …
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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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Shear strengthening of reinforced concrete beams with bi-directional carbon fiber reinforced polymer (CFRP) strips and CFRP anchors
The use of externally bounded Carbon Fiber Reinforced Polymer (CFRP) for strengthening existing RC structures has shown promising results. Although CFRP materials have high tensile strength, the ability to utilize that strength is limited by debonding of the CFRP laminates from the concrete …
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Multiaxial Fatigue Life Extension of Steel Elements Using Shape-Memory Alloy/Carbon Fiber-Reinforced Polymer (SMA/CFRP) Patch
… (thermally activated) shape-memory alloy (SMA) / carbon fiber-reinforced polymer (CFRP) patch for the repair of cracked steel elements. The SMA/CFRP patch provides crack bridging effects through its stiffness contribution to the sensitive detail, and crack closure through compressive stress fields …
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Analysis of a Carbon Fiber Reinforced Polymer Impact Attenuator for a Formula SAE Vehicle Using Finite Element Analysis
… and damage evolution model for laminated fiber reinforced polymers are explored. A series of tensile coupon finite element analyses are run to characterize the variables in the physical model as well as modeling techniques for using an explicit dynamic solver for a quasi-static problem. An …
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In-situ Characterization and Machine Learning Applications for Composite Processing
<p>Numerous aircraft and spacecrafts utilize carbon fiber-reinforced polymer structures to significantly enhance their operational efficiency and overall performance. Autoclave composite processing offers a solution for the intricate design of complex structures. However, the rapid temperature and …
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Composite materials in dynamic shipboard structural mounts
… materials are represented by steel and CFRP (carbon fiber reinforced polymer). Machinery and instruments in ships are often mounted for two main reasons: they create unwanted vibrations and they need to be isolated from shock and external vibration. In order to analyze this problem, the …
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BOND BEHAVIOR BETWEEN STEEL AND HIGH MODULUS CFRP PLATES AT MODERATLEY ELEVATED TEMPERATURES
… steel beams strengthened with externally bonded carbon fiber reinforced polymer (CFRP) plates. In the first phase of the research, five steel-CFRP bonded double-lap shear coupons were tested at different temperatures to characterize the bond behavior. In the second phase of testing steel beams …
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A High Power Microwave Zoom Antenna With Metal Plate Lenses
… beam output and approximately 10% bandwidth. Carbon Fiber Reinforced Polymer (CFRP) composites were demonstrated through experiment and simulation to have sufficient conductivity to replace metal for the lens elements and would provide a stronger, lighter weight alternative to metal. Such …
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