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Showing 1 to 12 of 12 for “"Slender Structures"”.
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Bending, Creasing, and Snapping of Soft, Slender Structures
Crosslinked polymers or elastomers are examples of soft, synthetic material that can bend, crease, snap, wrinkle in response to external stimulus like pH, humidity, electric field or swelling. If a droplet of favorable solvent is placed on top of a thin, elastomer beam, it bends drastically to …
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Vortex-induced vibration of slender structures in unsteady flow
… of offshore oil exploration and production structures. In recent years, the offshore industry has begun to employ curved slender structures such as steel catenary risers in deep-water offshore oil systems. The top-end vessel motion causes the slender riser to oscillate, creating an unsteady …
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The influence of semi-rigid connections on the behaviour of slender structures
In the classical analysis and design of slender frame structures, it is normally assumed that the connections of the structures are either rigidly fixed or perfectly pinned. However, the real situation is that most connections often exhibit semi-rigid characteristics. This no doubt has a …
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Análise estática não-linear geométrica de estruturas pelo método de superposição modal com base Lanczos-Ritz
… for geometric nonlinear static analysis of slender structures, and to examine, as an alternative to a modal basis, the use of a coordinates transformation constitutes by vectors produced in a non-iterative way from a Lanczos algorithm. In the method of buckling mode superposition the …
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Geometry-driven filamentary structures : elastic gridshells, weaves, clasps, and knots
… research topics in the realm of the mechanics of slender structures involving strong geometric constraints: elastic gridshells, triaxial weaves, elastic clasps, and elastic knots. These studies involve a combination of geometric reasoning, high-fidelity numerical simulations, and precision model …
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The design of adaptive structures for wing morphing
… is concerned with the design of adaptive structures for achieving global multi-shape morphing aerodynamic configurations, by using slender structures. The proposed methodologies pursue two threads towards global optimisation of morphing structures, by providing means of aerodynamic …
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Numerical modelling of an offshore pipeline laid from a barge
… suitability of ABAQUS to model the behaviour of slender structures under both static loads and dynamic excitations.
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Catenaries in Viscous Fluid
Slender structures in fluid flow exhibit a variety of rich behaviors. Here we study the equilibrium shapes of perfectly flexible strings that are moving with a uniform velocity and axial flow in viscous fluid. The string is acted upon by local, anisotropic, linear drag forces and a uniform body …
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The instability of slender reinforced concrete columns. A buckling study of very slender reinforced concrete columns between the slenderness ratios of 30 and 79 Including essential creep investigations, and leading to design recommendations.
Slender structures are elegant aesthetically. The insufficiency in knowledge of the real resistance to buckling of very slender reinforced concrete columns leads to an exaggeration of the sizes of the columns. _The examples of concrete compression members cited and constructed in Industry on a …
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The influence of semi-rigid connections on the non-linear behaviour of pallet rack and scaffold structures
Traditional analyses of framed structures have assumed that the connections between uprights and beams are either rigid or pinned. In reality all joints exhibit flexibility and can be considered as semi-rigid. The published work in this thesis provides some of the most extensive work on the effects …
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Accurate FE-simulation of three-dimensional microstructures
… and which, for multi-physically active thin structures, is derived on the basis of a functional analytical framework. In addition, a refinement strategy and a geometrical split pattern are required in order to be able to implement a reliable and stable software tool with which to control the …
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Physico-chemical hydrodynamics of droplets on textured surfaces with engineered micro/nanostructures
… with reflection of light, mechanical failure of slender structures, energy dissipation in non-Newtonian fluids, and aerodynamics of airborne droplets impacting onto permeable structures. Based on this integrative understanding, we construct design frameworks for both quantifying the performance …