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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 34 for “"advanced composites"”.
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Forming processes for advanced composites
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Preliminary forming limit analysis for advanced composites
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Viscoelastic characterization of angle ply advanced composites
… Boron/Epoxy and Graphite/Epoxy fiber controlled composites were investigated. The main objective of this study was to develop a technique to establish interconversion of different test results using appropriate viscoelastic theory to formulate an accelerated testing procedure. To achieve this …
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Advanced Composites for Design and Rehabilitation of Hydraulic Structures
Concrete and steel have been predominantly used in civil and hydraulic infrastructure construction. With several years of service under adverse climatic conditions, those structures have exhibited moderate to severe deterioration and composite materials are emerging as one of the most feasible and …
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Advanced composites using non-autoclave processes: manufacturing and characterization
… processes to manufacture high performance composites for aerospace applications. In Paper 1, vacuum assisted resin transfer molding (VARTM) process was developed for elevated temperature composites. Use of VARTM process for fabricating high temperature resins presents unique challenges such …
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DEVELOPMENT OF COST EFFECTIVE NANOSTRUCTURAL REINFORCEMENTS FOR ADVANCED COMPOSITES
… work is to develop cost effective structural composites reinforced with complex carbon nanostructures for multiple applications. The main process in this study is mechanical milling which induce the in-situ transformation of carbon in the form of soot into complex nanostructures that behave as …
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Performance Evaluation of RC Flexural Elements Strengthened by Advanced Composites
The flexural 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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A Decision Support System for Advanced Composites Manufacturing Cost Estimation
The increased use of advanced composites in aerospace manufacturing has led to the development of new production processes and technology. The implementation of advanced composites manufacturing technology is poorly served by traditional cost accounting methods, which distort costs by using …
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WEB based cost estimation models for the manufacturing of advanced composites
… are almost none (excluding proprietary) for advanced composites. As a result, our research group's objective has been to create Cost Estimation Models (CEMs) for the advanced composites. This thesis focuses on the modeling of the parts and processes as well as the implementation of the CEMs. …
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A cure process model for resin transfer molding of advanced composites
The resin transfer molding (RTM) process has been identified as a cost-effective fabrication technique for producing composite materials from geometrically complex reinforcements. Processing models can be used to determine the temperature and pressure cycles which will produce a finished part with …
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A study of tension, compression, and shear test methods for advanced composites
… of the literature pertaining to test methods for advanced composite materials has been carried out. Several test methods were discussed and compared for each of three areas of interest. These areas were uniaxial tension, uniaxial compression and in-plane shear. Test methods were selected for …
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Multi-Class 3D Segmentation of Progressive Damage in Advanced Composites using Deep Learning
Carbon fiber reinforced polymer (CFRP) composites are playing an increasingly important role in modern aerospace primary structures. Underpinning their growing utilization is their relatively high mass-specific stiffness and strength, together with tailorable bulk mechanical properties. However, …
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A Method for Winding Advanced Composites of Unconventional Shapes using Continuous and Aligned Fibers
<p>Advanced composites are extremely strong, rigid, and light, even when compared with advanced metals. Advanced composites are replacing high-tech metals as the material of choice for aerospace engineering. However, the processes used to manufacture advanced composites generally lose some of the …
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Nanoengineered hierarchical advanced composites with nanofiber interlaminar reinforcement for enhanced laminate-level mechanical performance
… To date, composite materials, specifically advanced carbon fiber reinforced plastics (CFRPs), which are comprised of high specific stiffness and strength continuous carbon microfibers and lightweight, relatively compliant polymers, have been among the most attractive materials and are used …
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Static and free vibration analysis of advanced composites using shear-deformable rectangular plate finite elements
A comparison of rectangular finite elements based on a first order shear deformation plate theory and a refined higher order plate theory is presented. Special attention is given to the representation of transverse shear strain, the phenomenon of "shear locking", and the selection of the …
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Enhancement of Mechanical, Structural, and Electrical Properties in Advanced Composites and Vat Photopolymerized 3D Printing Nanocomposites
<p>Advanced composites have gained significant attention across various industries, including aerospace, automotive, clean energy, and healthcare, owing to their exceptional mechanical properties and versatility. Fiber-reinforced polymer (FRP) composites, particularly those reinforced with carbon …
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Impact and energy absorption of laminated and sandwich composites
Advanced fiber reinforced composites combine high specific strength and stiffness. Advanced composites are currently being introduced into modern U.S. Navy ships to achieve weight savings, maintenance reduction, and signature reduction. These advancements manifest themselves in Naval ships as …
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Characterization of composites with aligned carbon nanotubes (CNTs) as reinforcement
… 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 hybrid architectures are …
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Felted Objects via Robotic Additive Manufacturing
… of applications ranging from custom footwear to advanced composites.
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Computational Prediction of Conductivities of Disk-Shaped Particulate Composites
… function have potential applications in advanced composites with embedded graphene nanoplatelets.</p>
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