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Showing 1 to 20 of 32 for “"Resultants"”.
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Stress and shape analysis of a paraglider wing
… equations to find expressions for the stress resultants in terms of the pressure on the sail and the deflected shape of the sail. By integration of these expressions for stress resultants, along the edges of the sail, the resultant forces applied by the sail to the leading-edge booms and keel …
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Arbitrarily curved and twisted space beams
… derived and that the expressions for the stress resultants are developed from the strain - displacement relations instead of assuming that the resultants are proportional to changes in the curvatures. It is shown that the torsional stress resultant obtained by the classical approach is basically …
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Population dynamics: general results from local analysis
… a mathematical technique, the method of resultants, is derived. Application of the method of resultants and the general modelling approach reveals a new, general solution to the famous paradox of enrichment. Furthermore, the investigation of general models prove that chaotic parameter …
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Dynamic analysis of a composite moving beam
… One is to set all y-related forces and moment resultants zero; other is to keep the cross resultants non zero. Also, as a comparison, results are obtained based on Classical Laminate Plate theory (CLPT). (Abstract shortened by UMI.).
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Role of the Curved Parametric Element in Linear Analysis of Thin Rotational Shells.
… generally from compression or shear inplane resultants.<br/><br/>Some perspex models in the shape of a cooling Tower were formed and tested in order to verify the existence of any correlation between theoretical and experimental results. These tests covered linear, small displacement response …
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Modelling Reinforced and Prestressed Concrete Structures Subjected to Shear and Torsion
… response of shells subjected to the eight stress resultants, is presented. Based on Shell II-S, a simplified three-layered finite element model for shells is presented, the method is called Shell II. These techniques are then used to inform the development of simplified design and analysis …
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Structural Investigation of Negative Gaussian Curvature Shells as Liquid-Storage Vessels
… analytical solutions for membrane stress resultants due to hydrostatic loading have been developed and were used to conduct the structural investigation. The solutions developed were based on the membrane theory for shells of revolution for the concrete vessel and can be used to assess the …
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Stress distribution around holes in laminated composite plates
… from a 72 DOF finite element method. The stress resultants and stress couples around the hole, the interlaminar stresses, as well as the tangential stress through the plate thickness are studied. In addition, the boundary layer phenomenon in the vicinity of the hole is presented.
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Shear analysis of rectangular concrete tanks considering interaction of plate elements
… of determining horizontal and vertical shear resultants at any point within a one, two, or three plate system where plates are joined at ninety degree angles. Program options allow for tapered walls and combinations of both uniform and triangular loads for each type plate problem. The three …
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Estudo sobre a qualidade da resposta dinâmica do Método de Superposição dos Modos de Lanczos
… the behavior, limitations and cautions, resultants of this study, of the Lanczos Mode Superposition Method, for the several periods analysed, principally the lowest. Comments about the use of error parameters to the definition of dynamic response quality are also addressed.
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Nonlinear deflections of a circular plate with varying thickness
… material to analyze the deflections, stress resultants and change in the thickness for a plate clamped along the outer edge and deflected by a uniform pressure applied normal to the deformed surface. The equations are quasilinearized and solved numerically with the aid of a digital computer. …
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Analysis of Pressurized Arch-Shells
… along the arc length. Deflections, stress resultants, and moments at various locations are computed for two types of shapes: circular and non-circular arch-shells.
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The Development and Application of a Trapezoidal Shear Panel for Use in Finite Element Codes
… 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 derived from a complete polynomial Airy stress function. The element was numerically tested as a pure stress element and a hybrid …
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Structural analysis and optimization with a locally-Cartesian Hybrid Shell Model
… Displacements, basis rotations, and stress resultants are the primary unknowns. A fully adjoint-consistent plane-stress HSM version (HSM2D) is developed for the purpose of model verification and demonstration of order-of-accuracy convergence. The Method of Exact Solutions (MES) is applied to …
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As territorialidades que emergem na gestão das águas: um caminho para a Agenda 21
… arranges. The social relationships gave resultants that were apprehended, and were confronted to the beginnings of the Agenda 21, which represents an instrument for a new model of development. Aiming at the new water resource legislation, it was looked for the results of a practical case, …
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A study of some fundamental equations for the deformation of a variable thickness plate
… nine fundamental equations, we have the stress resultants n<sup>αβ</sup> and the deflections v<sup>α</sup>. With appropriate boundary conditions, these equations could lead to a study of in-plane forces and buckling of variable thickness plates, a field in which not much progress has been made. …
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Measurement of Forces and Moments in Three-Dimensional Archwires
… systems by evaluating differences between the resultants of two-dimensional and three-dimensional orthodontic appliance activations. An in-vitro model was constructed and three force-moment gauges were used to measure the forces and moments produced. Comparisons were made between …
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Compression and buckling of composite panels with curvilinear fibers
… from which the strains, stresses, and stress resultants can be subsequently calculated. A numerical solution has been obtained using an iterative collocation technique. Corresponding closed form solutions are presented for the in-plane problem for four different sets of boundary conditions. …
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Design And Fabrication Of A Full-featured Labscale Hybrid Rocket Engine
… the fuel and oxidizer mixture were obtained. The resultants were used as initial input to the computer model for predicting the lab-scale rocket's Chamber Pressure, Chamber Temperature, Ratio of Specific Heats and Molecular Weight. Details on the model, the rocket hardware, and the successful test …
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Large deformation analysis of laminated composite structures by a continuum-based shell element with transverse deformation
… the linear analysis and the nonlinear analysis. Resultants of the stress integrations are expressed in terms of the laminate stacking sequence. Consequently, the laminate characteristics in the normal direction can be evaluated precisely and the cost of the overall analysis is reduced. The …
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