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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 38 for “"static loads"”.
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Geomechanical Model Study of the Behavior of Underground Openings in Rocksubjected to Static Loads
Made available in DSpace on 2014-12-10T22:21:42Z (GMT). No. of bitstreams: 1 7206952.pdf: 12884452 bytes, checksum: 3c61c25274f17da42711fc3aa4de6957 (MD5) Previous issue date: 1971
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A new electric strain gauge and its application to structural models subjected to static loads.
Massachusetts Institute of Technology. Dept. of Civil Engineering. Thesis. 1945. Sc.D.
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The effects of earthquake excitations on reticulated domes
… reticulated domes subjected to uniform static loads only and uniform static loads with earthquake excitations. Space truss elements were used in the dome models. The stiffness matrix of the space truss element allows for the nonlinear strain-displacement behavior and the stress-strain …
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Nanomechanics model for static equilibrium
… simulate atomistic behavior of materials under static loads. Interatomic potential energy was used to maintain equilibrium among atoms under static loads and constraints. In addition, the atomistic model was coupled with the finite element analysis model so that more flexible loads and …
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Lubrificação hidrodinâmica em mancais radiais porosos
… of finite porous journal bearings under static loads is investigated. An analytical solution is presented and the results relate the eccentricity ratio, the attitude angle, the geometry and the load, friction and design parameters, the latter being a function of the permeability of the …
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Computed Nonlinear Seismic Response of Reinforced-Concrete Wall-Frame Structures (Dynamic, Analysis)
… and one wall-frame system under dynamic loads and static loads are compared with the available test results. The effects of moment-axial force interaction of wall members as well as the effects of pinching action and strength decay of coupling beams on overall computed responses of the …
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Dynamic load modeling in power system analysis
… induction machine modeling and polynomial static load modeling on the stability of electric power systems and to compare the results with those obtained using constant impedance or constant current load models. A least-squares curve fit algorithm is developed and used in modeling static and …
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Quantifying Exertion for American Football Linemen via Force, Acceleration, and Heart Rate Measurements
… linemen spend most of their energy maintaining static loads; thus, they are in need of a new exertion metric. To design this metric, acceleration, force, and heart rate data is recorded over different weight lifting, running, and football-specific activities. From this data, a dimensionless …
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Numerical modelling of an offshore pipeline laid from a barge
… The analysis is performed in two parts: in the static analysis the displaced equilibrium position of the pipeline under self weight, buoyancy and barge tension is sought, whilst the response due to wave action and barge motion is of interest in the dynamic analysis. Numerical experiments show …
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Consideraciones respecto a los sistemas provisionales de protección de borde
… and analytically evaluated subject to static loads in compliance with UNE-EN 13374. The most relevant results obtained show that the process of assessment of the standard is not correct, as there are systems, which do satisfactorily pass the analytical evaluation but not the …
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Stability of reticulated domes under multiple static and dynamic loads
… stability of reticulated domes under multiple static and dynamic loads. Two elastic geometrically nonlinear structural models of a reticulated dome with 21 and 39 degrees of freedom are considered. The nonlinear response of the system to static loads is obtained using nonlinear programming and …
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Finite Element Model Validation and Testing of an Off-Road Vehicle under Dynamic Loading Conditions
… can be accurately represented by a series of static loads and constraints. Using these conditions, a Finite Element Model (FEM) can be employed to accurately predict the effects of the loading conditions in the components. During the initial design of the front suspension, one major load case …
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Geometric and material nonlinear effects in elastic-plastic and failure analyses of anisotropic laminated structures
… structures under monotonically increasing static loads is presented. A degenerated 3-D shell finite element that includes linear elastic and plastic material behavior with full geometric nonlinearity is used to determine stresses at selected points (Gauss quadrature points in each element) …
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Probabilistic approaches in civil engineering: generation of random fields and structural identification with genetic algorithms
… bars in existing truss structures, using static loads and strain measurements. In the cases of missing data and of damages that interest only a small portion of the bar, Genetic Algorithm have proved to be an effective tool to solve the problem.
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Static and dynamic stability analysis of a truss model
The purpose of this study is to investigate the static and dynamic stability of an elastic truss model. The truss model· is subjected, separately, to static loads, dynamic step loads, and dynamic impulse loads. For each loading, the results are presented in the form of stability boundaries and …
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Using Thermography to Evaluate the Effects of Arm Flexion and Loading on the Anterior Deltoid during a Simulated Overhead Task
… been implicated in their development; including static loads, repetition, and deviated posture. However, knowledge of underlying pathophysiological mechanisms is limited. Thermography provides a non-invasive technique that may offer clues to unknown physiological markers associated with injury …
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Multi-material Adhesive Bonded Joints Under Static And Dynamic Loading
… must exhibit robust behavior under both static and dynamic loading conditions, such as ballistic impact. Despite their promise, the failure mechanisms of adhesives under such high-strain-rate scenarios remain insufficiently understood.</p> <p>This dissertation investigates the performance …
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Development of an alternative test to obtain asphalt mixture creep compliance at low temperatures
… can withstand the stresses caused by thermal loads and underlying cracks in the field. This study evaluates if the DC(T) test geometry can be used to conduct a creep compliance test. The ability to run a creep compliance test using the DC(T) geometry will save time and money to various …
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Understanding the vertical load path under static and dynamic loads in concrete crosstie and fastening systems
… load path a lack of clear understanding of the loads on the components exists. A number of failure mechanisms of ties, pads, insulators and fasteners still exist. This study focusses on understanding how the stiffness of the components in the system affects the flow of forces in the vertical …
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Fatigue crack growth in ceramics containing a viscous grain boundary phase at elevated temperatures
… composite was examined under tensile static loading (static fatigue) and tension-tension cyclic loading (cyclic fatigue). The study was carried out at temperatures of 700-900$\sp\circ$C, where the vitreous grain boundary phase flowed viscously. Experimental results have shown the …
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