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 9 of 9 for “"Stress prediction"”.
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Stress prediction, fracture detection, and multiple attribute analysis of seismic attributes in a Barnett Shale gas reservoir, Fort Worth Basin, Texas
… Emphasis was placed on the detection of changing stress conditions and natural fractures. Azimuthal interval velocity analysis was found to be an effective tool for the detection of changing stress fields. The analysis of azimuthal amplitude data suggests that it can be used to map changes in …
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Computational Stress and Deformation Analysis of Mammary Prosthesis
… finite element models to determine the stresses in the implant walls under tissue loading. The non-linear material models were used to more accurately model the complex nature of the implant stresses. After analysis it was found that the implants were under compressive loading which …
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Numerical Modelling of Ball Bearing Stiffness to Predict Contact Stress Caused by Vibration Induced Gapping
… ball with the races, which produce high contact stresses. These high stresses can cause indentation damage on the ball and the raceways, and may lead to malfunction of the bearing, and therefore the mechanism the bearing forms a part. Previous studies have develop a 2-DOF model in order to …
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3D FE simulation of the welding process to optimise residual stress profiles in complex geometries
… several passes. Each successive pass alters the stresses caused by previous passes. Consequently, complex residual stresses of significant levels can develop at the welding stage. Tensile welding residual stresses can, in combination with operating stresses, lead structures to be prone to …
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Numerical methods for the stress analysis of pipe-work junctions
… a significant amount of study from designers and stress analysts to resolve some of the difficulties in stressing pressure structures. An extensive finite element (FE) analysis was carried out on 92 reinforced buttwelded pipe junctions manufactured by the collaborating company. Spromak Ltd. After …
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Smart Quality Assurance System for Additive Manufacturing using Data-driven based Parameter-Signature-Quality Framework
… on the design of experiments (DoE), forward prediction modeling, and an inverse design methodology. The proposed approaches were validated for AM processes such as fused filament fabrication (FFF) using polymer and hydrogel materials and laser powder bed fusion (LPBF) using common metal …
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Bayesian networks for uncertainty estimation in the response of dynamic structures
… on estimating the uncertainty associated with stress/strain prediction procedures from dynamic test data used in turbine blade analysis. An accurate prediction of the maximum response levels for physical components during in-field operating conditions is essential for evaluating their …
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Influence of tire-pavement thermomechanical interaction on contact stresses and rolling resistance
… the tire-pavement contact stresses and rolling resistance or loss. A baseline hyperelastic tire model was generated to understand the effect of the applied load, tire-inflation pressure, and traveling speed on contact stresses. Utilizing tire-pavement contact stresses as the …