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 10 of 10 for “"loading stress"”.
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Life prediction of spot-welds: a fatigue crack growth approach
… is developed for spot-welds subject to fatigue loading. Stress intensity factors are used with the Walker equation to develop two crack growth approaches to the problem. The predictions fit data for lap joint configurations well, but not so for peel joint geometries.
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Image-Based Modeling of Porous Media Using FEM and Lagrangian Particle Tracking
… and proppant-filled fractures under varying loading stress and flow simulation in these systems and (2) nanoparticle (NP) transport modeling in porous media. These are briefly explained below. Rock fracturing, followed by proppant injection, has been used for years to improve oil and gas …
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Permanent Deformation Behavior of Airport Flexible Pavement Base and Subbase Courses
… at the NAPTF under both 6-wheel and 4-wheel gear loadings applied following a wander pattern. Realistic pavement stresses induced by moving wheel loads were examined in the unbound aggregate base and subbase layers and the important effects of rotation of principal stress axes were indicated for a …
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Species, stand, and regional response to forest damage in southwestern Quebec following the 1998 ice storm
… the role of the combined effect of ice and wind stress. The study showed that ice accumulation was the primary determinant of tree damage (measured as the mean percent of canopy removed) and that individual species respond differently to ice-loading stress. Stand position (edge versus interior) …
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Dynamic electromechanical measurements of carbon black loaded SBR
… temperature rise measurement during stress cycling, and dynamic conductivity measurement. It is established that there are three distinct conduction regimes existing at carbon black loadings below, at, and above the percolation threshold. Characteristics of dielectric dispersion …
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Static and Dynamic Stress/Strain Properties for Human and Porcine Eyes
… trauma, however, existing models lack accurate stress and strain properties for ocular globe rupture. A pressure system was built to examine static and dynamic globe rupture pressures for healthy postmortem human and porcine (pig) eyes. Maximum rupture stress for the quasi-static tests was found …
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Failure Analysis of the Ulnar Collateral Ligament for Youth Baseball Pitchers
… analysis and inverse dynamics to calculate the stress experienced by the ulnar collateral ligament (UCL) during a typical pitch cycle, (2) compare calculated maximum UCL pitching stresses to failure properties, and (3) investigate correlations between UCL stress with anthropometric and pitching …
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Fracture Growth Kinematics in Tight Sandstone Reservoirs
… subcritical fracture propagation under constant loading stress.
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Fatigue Behaviour of CFRP Strengthened Reinforced Concrete Beams
… by fatigue when subjected to repeated cyclic loading. Fatigue not only reduces load carrying capacity and serviceability limit states (SLS), but it can cause structural failure even when the components are subjected to low stress range cyclic loading. Corrosion damage exacerbates fatigue …
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Damage accumulation of bovine bone under chaotic and variable amplitude loading.
Stress fractures are a common occurrence that can be detrimental to an athlete's career. At present, there is no method for early detection of stress fractures. This study is a continuation of the pilot study to determine if either the Palmgren-Minor rule (PMR) or phase space warping (PSW) could be …