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Showing 1 to 8 of 8 for “"Anisotropic elasticity"”.
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Some problems in anisotropic elasticity / Tristom Peter Cooke.
… of different problems within the area of the elasticity of anisotropic materials. The first problem concerns the calculation of stresses and strains within a concentric arrangement of cylindrical shells, where each shell has a differing set of anisotropic properties. This has immediate …
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Delamination dynamics and vibrothermographic-thermoelastic evaluation of advanced composite materials
… the concepts of the three dimensional theory of anisotropic elasticity. Delaminations were modeled, and the local crack resonance’ was justified. Two NDE methods namely, Vibrothermography and SPATE were used to verify the numerical predictions. Experiments performed for both undamaged and damaged …
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Prediction of crack extension direction in unidirectional composites
… to predict the crack tip stress field, an anisotropic elasticity solution and a singular isoparametric finite element formulation. After defining the crack tip stress field, three crack extension direction criteria, the Normal Stress Ratio, the Tensor Polynomial and the Strain Energy …
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On the role of lattice defects interactions on strain hardening: A study from discrete dislocation dynamics to crystal plasticity modelling
… approach allows for the efficient treatment of anisotropic elasticity, thereby paving the way towards performing DDD simulations in low-symmetry polycrystals. The information extracted from the collective dislocation interactions are then passed to a series of constitutive models, and later used …
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Ultra-high pressure composite vessels with efficient stress distributions
… to the realm of thick-walled design. For the anisotropic composite materials the stresses through the wall thickness tend to fall much more rapidly than with their isotropic metallic counterparts. This effect leads to a greatly reduced vessel efficiency quotient PV / W . To date, little is …
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Atomistic simulation of dislocation core structures in B2 NiAl
… effects reduced the high strain levels from anisotropic elasticity solution at the dislocation core considerably and resulted in asymmetrical core structures. The core structure of the (110) dislocations is mutilayered with spreading on the {110} plane. The extent of the same strain level …
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STRESS RESPONSE OF STATIC PARTICULATE MEDIA
… semi-infinite half plane of classical isotropic elasticity theory down to boxes of linear dimensions of approximately forty particle diameters and over several orders of magnitude in the applied force. The response profiles for frictionless packings exhibit transitional regime to strongly …
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Elasticity measurements at extreme conditions: application to FeO and FeNi-alloy
… anisotropy requires the knowledge of fully anisotropic elasticity data for mineral phases. The single-crystal elastic constants of minerals, Cij, are elements of the fourth-rank elasticity tensor, which relates stress to strain. The fact that elastic strain also defines seismic wave …