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 42 for “"Pure shear"”.
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Strain path partitioning during forceful emplacement of the Papoose Flat pluton, Inyo Mountains, CA
… units reveals large components of either pure shear or simple shear deformation. C-axis fabric analysis of quartz tectonites within veins in the gneissic border of the pluton, and quartzites within the pluton aureole, indicate that quartz tectonites deformed under approximately simple …
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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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Middle Crustal Ductile Deformation Patterns in Southern Tibet: Insights from Vorticity Studies in Mabja Dome
… structural depth from top-north and top-south shear to solely top-south shear. Along the northernmost transects, Wm in schists and orthogneisses range from 0.52–0.84 (63–36% pure shear). Wm for quartzites ranges from 0.9–0.99 (27–1% pure shear). Deformation temperatures increase from ~450 °C in …
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The effect of residual thermal stresses on the viscoelastic behavior of adhesively bonded joints
… in-situ using properties obtained from a pure shear test geometry. Four candidate adhesive test geometries were studied both analytically and experimentally in terms of accurate shear property determination and realistic adhesive bond simulation. The thick adherend joint was chosen as the …
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Strain in Ordovician and Devonian shales from the Massanutten Synclinorium: implications for fold development and tectonic history
… minor folding involving both flexural slip and pure shear. Curved fringes, straight fringe segments separated by sharp curvatures and multiple sets of fringes indicate that increments of pure shear were interspersed with continuous to episodic limb rotations accommodated by flexural slip. …
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On the predictive capability and stability of rubber material models
… model has the best predictive capability for pure shear deformations. Furthermore, with respect to more complex non-homogenous deformations, a conclusion is drawn that all three major deformations, namely uniaxial deformation, biaxial deformation and pure shear deformation, must satisfy the …
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Rheometric measurement of hydrogel toughness
… and show it is broadly consistent with the pure shear test, a standard method where the material exhibits mode I fracture. This method has potential applications in characterizing a wide range of soft and transient gels.
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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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JOINING OF CERAMIC COMPOSITES AND ADVANCED CERAMICS
… is still unavailable and measuring the shear strength of the same joining material with different test methods could lead to different results. The aim of this Thesis is to compare and discuss several different shear strength tests used to join ceramics and CMC, with the final goal to …
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Neural network-based material modeling
… tests on reinforced concrete panels in both pure shear and combined shear with normal stresses.
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On The Shear Strength Of Partially Grouted Concrete Masonry
Masonry shear walls are one of the most common structural elements in buildings. The in-plane shear capacity of load-bearing walls is of great importance in the seismic design of structures. This study focuses on the shear behaviour of wide-spaced reinforced partially grouted (WRPG) concrete …
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Structural analysis of geodesically stiffened composite panels with variable stiffener distribution
… Applied loads are uniaxial compression, pure shear, and combined compression-shear.
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New in-plane and interlaminar shear test methods for fiber reinforced composites
… new compact double-notched specimen for in-plane shear testing of isotropic, anisotropic and composite materials was developed. A preliminary test of the specimen was performed on a cross-ply laminate. High sensitivity moire interferometry was used to determine the shear and normal strains on the …
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A beam test for adhesives
… beam test specimen to determine adhesive shear properties is reviewed and discussed. A parametric analysis for the adhesive shear stress and for the end deflection reveals the specimen dimensions required for reliable bonded adhesive shear properties determination. Recommendations are …
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The Development and Application of a Trapezoidal Shear Panel for Use in Finite Element Codes
… foundation of the arbitrary quadrilateral shear panel used in structural analysis codes to model aircraft structures. An equilibrium stress-based element with pure shear resultants on its sides was developed using the principle of complementary virtual work. The internal stress field was …
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Structural and metamorphic evolution of a gneiss terrain in the Namaqua Belt near Onseepkans, South West Africa
… is represented by a northwest trending dextral shear zone - the Pofadder ZAHNCAFS. The zone of reorientation associated with this shear zone controls the geometry of the western part of the area. The shear zone varies in width from 20 to 40 km and the core contains a 2 km - 7 km wide belt of …
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Experimental determination of the yield locus of anisotropic metal sheets using digital image correlation
… in plane-strain and equibiaxial tension, pure shear, and uniaxial compression for corresponding values of plastic work per unit volume from the stress-strain response. Hill's 1948 R-based and stress-based yield criteria, Hill's 1979 planar-isotropic yield criterion and Barlat's Yld2000-2d …
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Geometry, kinematics and age of the northern half of the White Mountain shear zone, eastern California and Nevada
The White Mountain shear zone (WMSZ) is a zone of intense penetrative deformation that lies along the western front of the northern White-Inyo Range in eastern-most California and western-most Nevada. The northern half of the WMSZ is characterized by a NNE to NNW-striking steeply dipping foliation …
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Structural analysis and optimum design of geodesically stiffened composite panels
… height. Applied loads are uniaxial compression, pure shear, and combined compression-shear. Two different geodesically stiffened wing nib configurations with increasing numbers of stiffeners are considered. Results are presented in the form of structural efficiency curves and are compared with …
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Characterization of functionally graded materials through fractal geometry
… of both Titanium and Titanium Monoboride (TiB), pure shear tests are simulated using ABAQUS for coarseness level of 50, 100 and 200 under the Uniform Kinematic Boundary Condition (UKBC) and the Uniform Static Boundary Condition (USBC). The material response observed under both these BC’s shows a …
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