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Showing 1 to 14 of 14 for “"Plate Element"”.
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Spectral Element Analysis of Bars, Beams, and Levy Plates
… development and coding of a Levy-type spectral plate element to analyze the harmonic response of simply supported plates in the mid to high frequency range. The development includes the governing PDE, displacement field, shape function, and dynamic stiffness matrix. A two DOF spectral Love bar …
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Development of partial hybrid finite elements for 3-D global/local analysis of laminated composite structures
… of this work is to develop global/local finite element models using partial hybrid stress finite elements for stress analysis of laminated composite structures. Based on the composite variational principle, the general formulations of partial hybrid single-layer finite element and multilayer …
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Aeroelastic Analysis of Rotor Blades Using Three Dimensional Flexible Multibody Dynamic Analysis
… large elastic deformations. A triangular element, based on the first order shear deformable theory, has been developed specifically for folded plate and shell structures. The plate element does not suffer from either shear or aspect-ratio locking under transverse and membrane bending, …
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Nonlinear earthquake analysis of wall pier bridges
… earthquake analysis of wall pier bridges. Mixed plate elements are used to model the wall pier. The plate element has eight nodes and the degrees of freedom per node are three displacements and three moments. Beam elements are used to model the bridge deck. The beam element accounts for shear …
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Analysis of rectangular concrete tanks considering interaction of plate elements
This study developed a finite element program suitable for analyzing one quarter of a rectangular tank. A rectangular plate element capable of both extension and flexure was used with appropriate coordinate transformations to enable interaction of the floor and wall plates. Moment values throughout …
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Análise de cascas de revolução pelo método dos elementos finitos com elemento de casca axissimétrico
… axially symmetric loading is done by the finite element method. For this purpose a truncated cone element is used to take advantage of the symmetry or the structure. Three interior degrees of freedom are introduced for each element, resulting in improved displacement functions. The effect of …
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Associação de cascas de revolução com carregamento axissimétrico
… solutions of spherical, conical and cylindrical elements. A similar approach to the finite element method is used, the difference being on the choice of the displacement functions that are the solutions of the differential equations corresponding to each element. A circular plate element and a …
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Finite element analysis of some soil-structure interaction problems
A finite element procedure is used for analysis of a number of soil-structure interaction problems. This procedure involves one dimensional beam-column element, two-dimensional (rectangular) plate element, and nonlinear foundation represented by a series of springs. The behavior of the latter is …
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Development of the Velocity Transformation Function of Damped Flat Shell Finite Element for the Experimental Spatial Dynamics Modeling
… Vibrometer (SLDV). In ESDM process, a finite element formulation is used to construct a numerical model of a structure. A conventional finite element such as rod, beam, or plate element, can be used to construct the numerical model of a structure from its mid-plane. In this research, the …
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Active limiting frequency selective surface at X-band
… operating at X-band is proposed using a square-plate element, and is simulated and measured for both small-signal and large-signal conditions. The measurements show that the concept is capable of non-linear limiting behavior with insertion loss comparable to the traditional microstrip limiter …
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Implementation of Third Order Plate Theory for use in Existing Finite Element Software
Sandwich plates and layered composites are common in many structural applications because of their combination of high stiffness and low weight. These plates combine top and bottom layers of high Young's modulus with intermediate layers of material carrying predominantly shear loads. Finite …
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Postbuckling behavior of rectangular plates
Unlike simple columns, rectangular plates which are supported on all edges may carry considerable load beyond their buckling load. Under some conditions it may be advantageous to utilize this additional load-carrying capacity. Von Karman has presented the basic nonlinear differential equations for …
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Optimally stiffened thin shell structures in 3D printing.
… these techniques either use traditional finite elements or ignore shell contribution. The advantages of attaching stiffeners seamlessly to skin surface are: • Stiffeners can alleviate interior space compared to insertion of struts or Voronoi structure; • Stiffeners are less likely to cause …
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Refined theories and Discontinuous Galerkin methods for the analysis of multilayered composite structures
Laminated multilayered composite and sandwich plates and shells are widely used for military and civilian aircraft, aerospace vehicles, and naval and civil structures because of their high specific stiffness and strength and tailoring capabilities. Moreover, composite materials are increasingly …