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 16 of 16 for “"Shear-dominated"”.
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Beyond the standard model of cosmology : a perturbative approach
… perturbations and gravitational waves in the shear dominated and the matter dominated regimes. We find that whereas the analysis of the perturbations in the matter dominated regime recovers the standard FLRW results, the analysis of perturbations in the shear dominated regime reveals that …
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Time-fractional analysis of flow patterns during refrigerant condensation
… are statistical averages of gravity dominated and shear dominated flows occurring in intermittent flow.
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Experimental investigation of the response of reinforced concrete structural walls subjected to static and dynamic loading
… (R/C) structural walls that are susceptible to shear failure after flexural yielding. The investigation was divided into an experimental and an analytical phase. There were three main objectives in the experimental phase: to study the potential discrepancies between static and dynamic wall …
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Finite Opening of Propagating Shear Cracks
Molecular Dynamics (MD) simulations of shear-dominated crack propagation by Abraham and Gao (2000) showed that there was finite crack opening when the crack propagated at a sub-Rayleigh speed while the crack opening became negligible when the crack propagated faster than the shear wave speed. On …
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Development of Novel Computational Simulation Tools to Capture the Hysteretic Response and Failure of Reinforced Concrete Structures under Seismic Loads
… non-associative flow rule to capture compression-dominated response, is combined with a rotating smeared-crack model to capture the damage associated with tensile cracking. The proposed model resolves issues which characterize existing concrete material laws. Specifically, the newly proposed …
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Dynamics and parameterization of stably stratified turbulence: implications for estimates of mixing in geophysical flows
… length scales of overturns in stably-stratified shear-flow turbulence and the fundamental length scales constructed from dimensional analysis of basic physical quantities. In geophysical flows such as the ocean, overturns are relatively easy to observe while the basic quantities are not. As such, …
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The structural evolution of an ancient accretionary prism in the Damara Belt, Namibia
… by a foliation. D₁ is associated With pure shear dominated layer-parallel extension characterised by disrupted lithological layering and hedding-parallel foliation S₀+₁. D₃ is defined as deformation related to the formation of an axial-planar S₂ caused by folding of S₀+₁ around F₂ hinge …
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Computational and Experimental Investigation of Seismic Structural Fuse Shapes for Structural Systems
… engineered cutouts leaving a configuration of shear-acting links remaining. There have been several studies on various cutout patterns for shear-acting structural fuses including butterfly-shaped links, hourglass-shaped links, elliptical holes, and link shapes obtained from topology …
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MULTI-SCALE MECHANICS OF COMPOSITE SANDWICH STRUCTURES WITH BIOLOGICALLY INSPIRED FIBER REINFORCED FOAM CORES: A POTENTIAL TEMPLATE FOR DEVELOPING MULTIFUNCTIONAL STRUCTURES
… scales revealed that the mechanical behavior is dominated by the stronger and stiffer macrofibers, while the porous cellulose matrix controls load transfer and failure between macrofibers. Shear dominated debonding and pore collapse mechanisms have been identified as the leading modes of failure …
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Seismic Assessment of Singly Reinforced Concrete Walls in Pre-1970s Multi-Storey Buildings
… global and local behaviour of both flexural- and shear- dominated reinforced concrete walls with non-ductile detailing. The modelling results indicated that the wall response and drift capacity of reinforced concrete walls representing typical older construction practice in New Zealand before …
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The Flow Dynamics and Buttressing of Ice Shelves
… data is analysed, producing maps of strain rate, shear rate and strain orientation for Antarctic ice shelves. This allows the geophysical setting and flow processes to be explored, particularly by identifying areas where resistance to ice flow is generated and regions of the shelf that make no …
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Inelastic web crushing performance limits of high-strength-concrete structural walls
… (HSC).The possibility of web crushing failure in shear dominated reinforced concrete element rises when the dimensions of the boundary elements become larger and the webs becomes thinner. Web crushing, or diagonal compression failure, manifests itself as compression failure of concrete struts …
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Finite Deformations of Fiber-Reinforced Rubberlike Solids, and of Adhesively Bonded T-peel Joints
… It has been shown in the literature that in shear-dominated deformations, the 5th invariant, I5, significantly contribution to the stress-strain curve. We have implemented the constitutive relation in the commercial software, LS-DYNA. The numerical solutions of several boundary value problems …
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The structural setting of the Canaã dos Carajás region and Sossego-Sequeirinho deposits, Carajás – Brazil
… foliation sets, related steeply dipping ductile shear zones associated with steep-to-moderately plunging mineral lineations. The nature and geometry of the ductile fabrics are compatible with a bulk pure-shear dominated transpression with partitioning of strain intensity with shortening and …
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Adhesive bonding of stainless steel :Sstrength and durability.
… surface pre-treatments. Standard single overlap shear and floating roller peel tests conducted in ambient conditions were employed in the discrimination and the degree of compatibility between adhesive and adherend, as measured by the proportion of cohesive failure on the post-fracture face, was …
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Adhesive bonding of stainless steel : strength and durability
… surface pre-treatments. Standard single overlap shear and floating roller peel tests conducted in ambient conditions were employed in the discrimination and the degree of compatibility between adhesive and adherend, as measured by the proportion of cohesive failure on the post-fracture face, was …