Results 11 to 20 of about 18,656,673 (304)
Higher Order mz-elements in Coherent Quantales
Scientific Annals of Computer ScienceThe mz-elements of a coherent quantale have recently been defined by the author as an abstraction of the mz-ideals of a unital commutative ring. Having as its starting point the Dube and Ighedo recent paper on higher order ideals in ring theory, this ...
George Georgescu
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A higher‐order equilibrium finite element method [PDF]
International Journal for Numerical Methods in Engineering, 2018 SummaryIn this paper, a mixed spectral element formulation is presented for planar, linear elasticity. The degrees of freedom for the stress are integrated traction components, ie, surface force components. As a result, the tractions between elements are continuous.
K. Olesen +3 more
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A higher‐order Trace finite element method for shells [PDF]
International Journal for Numerical Methods in Engineering, 2020 A higher-order fictitious domain method (FDM) for Reissner-Mindlin shells is proposed which uses a three-dimensional background mesh for the discretization. The midsurface of the shell is immersed into the higher-order background mesh and the geometry is implied by level-set functions.
Daniel Schöllhammer +1 more
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Higher-order finite element approximation of the dynamic Laplacian [PDF]
ESAIM: Mathematical Modelling and Numerical Analysis, 2020 The dynamic Laplace operator arises from extending problems of isoperimetry from fixed manifolds to manifolds evolved by general nonlinear dynamics. Eigenfunctions of this operator are used to identify and track finite-time coherent sets, which physically manifest in fluid flows as jets, vortices, and more complicated structures.
Nathanael Schilling +2 more
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Higher‐order MITC general shell elements [PDF]
International Journal for Numerical Methods in Engineering, 1993 AbstractTwo mixed‐interpolated general shell finite elements for non‐linear analysis‐a 9‐node element and a 16‐node element‐are presented. The elements are based on the Mixed Interpolation of Tensorial Components (MITC) approach in which the covariant strain component fields for the in‐plane and shear actions are interpolated and tied to the also ...
Bucalem, Miguel Luiz +1 more
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Data assimilation with higher order finite element interpolants
International Journal for Numerical Methods in Fluids, 2022 AbstractThe efficiency of a nudging data assimilation algorithm using higher order finite element interpolating operators is studied. Numerical experiments are presented for the 2D Navier–Stokes equations in three cases: shear flow in an annulus, a forced flow in a disk with an off‐center cavity, and a forced flow in a box all satisfying Dirichlet ...
Michael S. Jolly, Ali Pakzad
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Singular Higher-Order Complete Vector Bases for Finite Methods [PDF]
, 2004 This paper presents new singular curl- and divergence- conforming vector bases that incorporate the edge conditions. Singular bases complete to arbitrarily high order are described in a unified and consistent manner for curved triangular and ...
Graglia, Roberto, Lombardi, Guido
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Vibration and buckling analysis of functionally graded sandwich beams by a new higher-order shear deformation theory [PDF]
, 2015 This paper proposes a new higher-order shear deformation theory for buckling and free vibration analysis of isotropic and functionally graded (FG) sandwich beams.
Thai, Huu-Tai +3 more
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Higher-Order Hamiltonian for Circuits with (α,β) Elements
Entropy, 2020 The paper studies the construction of the Hamiltonian for circuits built from the (α,β) elements of Chua’s periodic table. It starts from the Lagrange function, whose existence is limited to Σ-circuits, i.e., circuits built exclusively from elements ...
Zdeněk Biolek +3 more
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Singular Higher Order Divergence-Conforming Bases of Additive Kind and Moments Method Applications to 3D Sharp-Wedge Structures [PDF]
, 2008 We present new subsectional, singular divergence conforming vector bases that incorporate the edge conditions for conducting wedges. The bases are of additive kind because obtained by incrementing the regular polynomial vector bases with other ...
GRAGLIA, Roberto +2 more
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