Global ETD Search
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 22 for “"Vertical loading"”.
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Lower Extremity Biomechanical Response of Female and Male Post-Mortem Human Surrogates to High-Rate Vertical Loading During Simulated Under-Body Blast Events
… the body of research concerning high-rate axial loading of the lower extremity and form the first detailed biomechanical account of UBB effects on female PMHS. This work will inform future decisions regarding the requirements for a valid injury assessment capability for female Warfighters in the …
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Numerical Modeling for Increased Understanding of the Behavior and Performance of Coal Mine Stoppings
… concrete block stoppings subjected to excessive vertical loading due to roof to floor convergence. For this reason, the failure mechanism of stoppings under vertical loading has not been fully understood. Numerical models were used in combination with physical testing to study the failure …
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Development and Validation of a Finite Element Dummy Lower Limb Model for Under-body blast Applications
… impacts and demonstrated poor biofidelity in vertical loading experiments. To assess military vehicle safety and make informed improvements to vehicle design, a novel Anthropomorphic Test Device (ATD) was developed and optimized for vertical loading. ATDs, commonly referred to as crash …
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The response of a suction anchor group to various applied loadings.
… tests could be measured. Pull-out tests under vertical loading være conducted on single anchors, of two geometries, at burial depths up to 11.3 times anchor diameter. It is shown that for a given geometry of model anchor and suction pressure a common relationship exists between uplift load and …
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Process for optimizing location of dampers in a building
… applies, observe its response to horizontal and vertical loading, and extract a linear relationship between the elongation and the perturbation if possible. The second part of the thesis is defining the optimization problem and applying it to a 2D structure as an example.
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Differences in Running Mechanics Between Overweight/Obese and Healthy Weight Children
… HW children, OV/OB children would display higher vertical loading, greater joint moments and greater joint angular impulses during running. We also expect decreased sagittal plane range of motion and increased frontal plane range of motion of the hip, knee, and ankle joints in the OV/OB group …
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Finite Element Analysis of a Pair of Leaning Pressurized Arch-Shells Under Snow and Wind Loads
… are considered, including uniformly-distributed vertical loads applied over all or half of the structure (representing snow), and wind loads on the structure. The arches are pinned or fixed to the ground. Deflections, vibrations, and stability of the structures are investigated using the finite …
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Design and performance of Thomas Telford's Bonar Bridge and Mythe Bridge
… compared. The cast-iron arch's ability to resist vertical loading is the main focus of the analysis, following Heyman's framework for limit analysis of arches. Global equilibrium and graphic statics indicate that the each rib, when acting alone, is insufficient to support asymmetric loading, …
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Optimal passive nonlinear damper design methodology for road race application
… analyzed using optimization to find the optimal vertical loading which maximizes lateral tire force. This optimization shows lateral force is maximized when inner and outer tire loads are equal, thus the objective function to be minimized is load transfer. Matlab Optimization Toolbox is then used …
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STUDIES OF DYNAMIC RESPONSE OF OFFSHORE GUYED TOWERS
… systems; (4) the P-Delta effects of the vertical loading; (5) the effects of variations in the values of the drag and inertia coefficients; and (6) the influence of the random phase angles used in the generation of the random sea. The response quantities examined are the lateral …
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Three-Dimensional Finite Difference Analysis of Geosynthetic Reinforcement Used in Column-Supported Embankments
… difference equations. Energy components from vertical loading, soil and column support, as well as bending and membrane stiffness of the geosynthetic are considered. Three pile orentation types were implemented: square piles, circular piles, and square piles rotated 45° to the edges of the …
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Pipe-Soil Interaction on a Clay Seabed
… and pressure driven expansion and hydrodynamic loading. Design of pipeline systems to accommodate these load cases requires an understanding of pipe-soil interaction.<br/><br/>This thesis reports the results of a research study investigating pipe-soil interaction on a clay seabed, as relevant to …
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Flow Around Cambered and Yawed Pneumatic Tyres
… rig, the tyre has been deformed with varying vertical loading, camber angle and yaw angle, as a Formula One tyre would experience in a race. These deformations have been shown to influence the time-averaged and instantaneous flow field. Cambering a tyre is shown to bias the downstream vortex …
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Response of suction caissons in soft clay under vertical and horizontal loading for tidal energy converter applications
… foundations must be thoroughly understood. TEC loading conditions will primarily be cyclic with the static loads resulting from the dead weight of the structure. The cyclic loads will have various components with periods up to approximately 24 hours and be strongly correlated to the tidal …
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Elastic analysis of soil media.
… The excavations were analysed for a uniform vertical loading in the base of the excavation and for lateral wall loads representing the effect of the release of the insitu stresses during excavation. Cases in which the lateral movement of the walls is completely restrained are also considered, …
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Observing Drought-Induced Crustal Loading Deformation Around Lake Mead Region via GNSS and InSAR: A Comparison With Elastic Loading Models
… deficits have further reduced the mass of water loading on the Earth's crust, causing it to elastically deform. I observe this process from the ground by recording the vertical land motion occurring at Global Navigation Satellite System (GNSS) stations, or from space via Interferometric Synthetic …
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Vibration serviceability of special footbridges in South Africa: an investigation of the crowd capacity of the Boomslang canopy walkway
… of footbridges subjected to pedestrian loading has been an academic pursuit since the year 1850 (Fujino & Siringoringo, 2015). Initially, research was focussed on understanding the influence of pedestrian vertical loading on the dynamic behaviour of a footbridge. Furthermore, this …
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An investigation into the impact of sequential filling on properties of emplaced refuse lifts and moisture stored in a municipal solid waste landfill
… with and without a cover soil, under increasing vertical loading. The data obtained from the tests were used in the simulation of moisture in refuse lifts at the site, using the Hydrologic Evaluation of Landfill Performance (HELP) model. The data were also used to formulate characteristic …
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Balloon-type CLT Shearwalls: Lateral Deformation and Kinematic Behaviours
… at floor levels, while also reducing cumulative vertical shrinkage and the number of structural connectors and panels. Despite these advantages, research on balloon-type CLT shearwalls remains limited, and their behaviour is not explicitly addressed in many current timber design codes. This …
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Guidelines for designing the overhead transmission tower foundations adjacent to cohesionless slopes
… line towers are subjected to oblique loading due to tower own weight along with wind loading. Due to land limitation and linear alignment of transmission lines, many power transmission towers are situated in sand near sloping grounds and proper evaluation of their foundation …
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