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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 766 for “"Flexural"”.
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Nonlinear flexural-flexural-torsional dynamics of metallic and composite beams
… integro-differential equations describing the flexural-flexural-torsional vibration of metallic and composite beams. The twisting curvature is used to define a physical twisting variable which makes the equations of motion unique and independent of the rotation sequence of the Euler angles. A …
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Flexural Behavior of CFRP-Pretensioned Girders
… AASHTO Type-I prestressed concrete beams under flexural monotonic and fatigue loading. Results of the experimental studies showed that the CFRP prestressed beams can exhibit higher strength and similar or lower deformability compared to steel prestressed beams. Further, CFRP prestressed beams’ …
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Large Flexural Oscillations of Thin Beams
Made available in DSpace on 2014-12-12T00:25:47Z (GMT). No. of bitstreams: 1 7212127.pdf: 1768402 bytes, checksum: dd0b6264d58a0c078757f8e159f8c88b (MD5) Previous issue date: 1971
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Gesture sensing with flexural ultrasonic transducers
… thesis focuses on the development of an array of flexural ultrasonic transducers to allow sensing through a fully metal substrate. An analytical model, finite element simulations, and experiments are presented to characterize and optimize the transducers, and a prototype is developed as a proof of …
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Flexural strength of circular monopole flange connections.
This investigation focuses on the flexural strength of circular flange connections in monopoles with particular attention to the role of stiffeners. Four finite element models---(a) 25.4 mm thick flange unstiffened connection, (b) 25.4 mm thick flange stiffened connection, (c) 19.1 mm thick flange …
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Concrete Bridge Girders with Exposed Flexural Reinforcement
… with new concrete, temporarily exposing the flexural reinforcement. The absence of bond between the concrete and steel at this stage makes it difficult to compute the flexural capacity and the current code criteria provide no guidance to assist practitioners. The research reported in this …
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Flexural behavior of prestressed concrete monoblock crossties
… critical to improve the understanding of their flexural behavior. This improved understanding can help to optimize current design and maintenance practices for concrete crossties, leading to longer service life, lower life cycle costs, and fewer in-service failures. Currently, center cracking is …
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Flexural Mechanics of Creased Thin Metallic Strips
… were formed. This dissertation investigates the flexural behaviour of a creased thin metallic strip and the influence of the crease geometry. When a strip is bent perpendicular to the crease, putting the crease region in tension and the strip edges in compression, initially torsional deformations …
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Flexural vibration of the incomplete circular ring
The flexural vibration of two incomplete circular rings, approximately 360º, fixed at one end and free at the other, is investigated. One ring lies in the thin ring range. The other ring lies in the borderline range between a thick and thin ring. A theoretical approach is used in an attempt to …
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Large strain flexural testing of thin composite laminates
… strain range common to deployable structures. Flexural behavior is characterized by the moment vs. curvature response therefore requiring a bending test. A special test fixture is developed to allow flexural testing of thin plates at large strains. Reaching large strains during the test …
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FLEXURAL STRENGTHENING OF RC BEAMS USING FERROCEMENT LAMINATES
… ferrocement laminate, the increase in ultimate flexural capacity of the strengthened beams, and the shear stress at the original beam/ferrocement laminate interface were derived and compared with the experimental results and available test data from other studies. The results show that the …
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Time dependent flexural analysis of reinforced concrete members
… deflection of RC beams is complex due to flexural cracking and the associated partial interaction (PI) behaviour of slip between the reinforcement and adjacent concrete. Add the additional complexity of time dependent concrete shrinkage to this partial-interaction (PI) behaviour and the …
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The Elastic Flexural-Torsional Buckling of Planar Structures
Made available in DSpace on 2014-12-08T23:56:16Z (GMT). No. of bitstreams: 1 6503594.pdf: 2805539 bytes, checksum: dc23d38baf901aa31f79cd33eeb66a9e (MD5) Previous issue date: 1964
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A Flexural Analysis of Elastic-Plastic Rectangular Plates
Made available in DSpace on 2014-12-08T23:56:41Z (GMT). No. of bitstreams: 1 6612371.pdf: 3273538 bytes, checksum: 7e9155c413cfe05ad0d517d086ba1155 (MD5) Previous issue date: 1966
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Design and characterization of tunable stiffness flexural bearings
Compressed flexures have a downwards-tunable stiffness in their compliant directions; their stiffness can theoretically be reduced by up to four orders of magnitude. The compression-stiffiness relation is linear for most of the loading, and this behavior can be taken advantage of to use the flexure …
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A six-degree of freedom flexural positioning stage
A novel, low-cost positioning stage was constructed using a six-axis compliant mechanism driven by three two-axis electromagnetic actuators. The mechanism's monolithic, planar geometry is easily fabricated with low-cost manufacturing processes (such as waterjet machining). The manipulator tolerates …
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Development of flexural design values for pallet shook
… of wood pallets requires estimates of average flexural properties of pallet lumber of many species and visual grades. The objective of this study was to develop procedures for estimating these design values for use in a first-order second-moment design format. Preliminary studies were performed …
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Flexural Behaviour of Steel Fibre Reinforced Concrete Tunnel Linings
… to focus on methods of evaluating their flexural strength and stiffness. This thesis presents the results of an experimental and numerical investigation of the flexural behaviour of full-scale steel fibre reinforced concrete tunnel lining segments. A series of a three-point flexure tests …
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Flexural Behaviour of Concrete Beams with High Strength Reinforcement
… design to 500 MPa. This thesis investigates the flexural behavior of concrete beams reinforced with HSR to assess whether current code provisions are appropriate. Curvature ductility ratios are calculated for cross-sections with varying concrete compressive strengths, and reinforcement types and …
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