Mixed finite element
BOUNDARY CONTROLLABILITY OF A LINEAR SEMI-DISCRETE 1-D WAVE EQUATION DERIVED FROM A MIXED FINITE ELEMENT METHOD
... the finite differences and finite element approximations of the two dimensional wave equation were ...A mixed finite element approximation was also proposed in [5] with good ...
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TítuloA posteriori error analysis of an augmented mixed finite element method for Darcy flow
... stabilized mixed finite element method for Darcy ...dual- mixed approach suitable residual type terms arising from Darcy’s law and the mass conservation ...
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TítuloA mixed finite element method for the generalized Stokes problem
... new mixed finite element method for the generalized Stokes prob- ...the finite element subspaces providing stability coincide with those employed for the usual Stokes flows except for ...
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Primal and mixed finite element methods for image registration
... primal, mixed and augmented formulations for the DIR prob- lem, together with their finite-element discretization schemes for their numerical ...and mixed variational formulations, as well as ...
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TítuloA residual based a posteriori error estimator for an augmented mixed finite element method in linear elasticity
... stabilized mixed finite element method for plane linear elasticity was presented and analyzed recently in ...and mixed boundary conditions, ...finite element subspaces for the corresponding ...
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TítuloA low order mixed finite element method for a class of quasi Newtonian Stokes flows Part II: a posteriori error analysis
... On the other hand, we recall that the application of adaptive algorithms, based on a posteriori error estimates, usually guarantees the quasi-optimal rate of convergence of the finite element solution to boundary ...
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TítuloA low order mixed finite element method for a class of quasi Newtonian Stokes flows Part I: a priori error analysis
... mentioned gradient, the present analysis is much simpler than in [3,16], and leads to a stable Galerkin scheme with low-order finite element subspaces. Indeed, the extended PEERS space is not needed any more, and ...
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Primal and Mixed Finite Element Methods for Deformable Image Registration Problems
... primal, mixed and augmented formulations for the DIR problem, together with their finite-element discretization schemes for their numerical ...and mixed variational formulations, as well as ...
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Finite element approximation of the vibration problem for a Timoshenko curved rod
... Abstract. The aim of this paper is to analyze a mixed finite element method for computing the vibration modes of a Timoshenko curved rod with arbitrary geometry. Optimal order error estimates are ...
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Grad div stabilization for the time dependent Boussinesq equations with inf sup stable finite elements
... In this paper we consider inf-sup stable mixed finite element approximations to the model (2) with grad-div stabilization. Our aim is to prove error bounds with constants independent on inverse ...
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TítuloA posteriori error analysis of an augmented mixed formulation in linear elasticity with mixed and Dirichlet boundary conditions
... augmented mixed finite element schemes ...simplest finite element subspaces described in subsections ...augmented mixed schemes ...
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Greif_Sc...pdf
... The remainder of the paper is structured as follows. In Section 2 we present the mixed finite element formulation, make some necessary definitions, and discuss the algebraic properties of the ...
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Vibration analysis of a temple bell by Finite Element Method
... Figure 7 shows the sectional shape and dimensions of Hojobo’s Doza. Though the real Doza shape is circular, the FEM-simulated shape was configured with quadrilateral factors (See Fig. 1) on condition that the area of ...
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Finite element model for crack propagation in a fretting fatigue problem
... ABAQUS cannot report the stress field in the user defined elements; under these conditions a non enriched element in front of the crack tip must be analyzed to implement the minimum shear stress range criterion. ...
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DISPLACEMENT VERSUS PRESSURE FORMULATIONS IN ELASTOACOUSTICS: FINITE ELEMENT APPROXIMATION
... We consider the same standard piecewise linear and continuous elements to discretize each variable on the solid displacement. For the fluid displacement we choose the lowest degree Raviart- Thomas tetrahedral finite ...
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Nearfield of multi-element source radiating a finite amplitude wave
... Examination of phenomena occurring in the nearfield of multi-element nonlinear source has been performed using arrangement shown in Figure 1. The PVdF needle hydrophone with a nominal diameter of 1 mm was scanned ...
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An application of the finite element method to curve fitting
... continuity requierements, including the fir9t deri vative or even the curvature. The most important aspect of the FEM both for this type of problem snd for other problems, involves the selection of shape or interpolation ...
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Finite element formulation for large displacement analysis
... In the manufacturing industry, inspection procedures are becoming more common every day. This task constists on measuring how much difference ex- ists between the original-ideal object specified by the designer, and the ...
160
A C1 finite element for Kirchhoff plate bending
... T h e use of several k i n d s of elements within the family c a n relieve s o m e c o m p u t a t i o n a l effort. L o w degree elements can be used near t h e b o u n d a r y , n o r m a l l y in large n u m b e r s ...
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Finite element simulation of sandwich panels of plasterboard and rock wool under mixed mode fracture
... Abstract: This paper presents the results of research on mixed mode fracture of sandwich panels of plasterboard and rock wool. The experimental data of the performed tests are supplied. The specimens were made ...
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