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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 5812-5814 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The use of unconventional (edge-based) finite elements is proposed for the computation of a static magnetic field in a system of deformable conductors and ferromagnetic bodies (with a linear b-h law). Thanks to a virtual-work approach, the associated forces can be computed at the element level.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    Compel 17 (1998), S. 59-63 
    ISSN: 0332-1649
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: Discusses some general algorithmic problems encountered when solving linear systems in electromagnetism, such as, e.g. the well-known difficulties linked with the curl-curl operator in discrete form. The problem is examined as part of a larger one: solving "mixed" (or as we prefer to say, "constrained") linear systems, with Lagrange multipliers, for which available strategies are reviewed. It is shown that dealing with the mixed system directly, without first getting rid of multipliers, can be a viable proposition.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    Compel 17 (1998), S. 717-725 
    ISSN: 0332-1649
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: By using complementarity (solving for both potentials, scalar and vector), one often can provide bilateral bounds for some quantities of interest, like for instance the reluctance of a circuit. However, the vector potential method is expensive, and does not make use of information acquired in the first phase of solving for the scalar potetential. We show how to improve on this by a "local correction" process which, starting from h = grad ?, yields a divergence-free b, close to µh, by a series of local and independent (parallel) problems.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Fusion Engineering and Design 9 (1989), S. 95-100 
    ISSN: 0920-3796
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Computer Physics Communications 37 (1985), S. 27-38 
    ISSN: 0010-4655
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Physics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Meccanica 27 (1992), S. 3-11 
    ISSN: 1572-9648
    Keywords: Elliptic PDEs ; Finite elements ; Mixed elements ; Differential geometry ; Whitney forms ; Tonti diagrams ; Complementarity ; Duality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Sommario Gli elementi misti sono elementi finiti speciali per campi vettoriali le cui funzioni di interpolazione non sono necessariamente continue in tutte le componenti; tali elementi vengono usati nell'ambito delle formulazioni ‘a due campi’, per esempio quando si calcolano simultaneamente spostamento e tensione in elasticità. In questo articolo viene presentata una famiglia di elementi finiti che traggono origine da un costrutto di geometria differenziale che in apparenza non ha alcun nesso con l'analisi numerica (le forme di Whitney): vengono illustrate le proprietà strutturali complessive di tale famiglia. Questa presentazione getta una nuova luce sugli elementi misti, sotto la quale essi acquistano un carattere più naturale.
    Notes: Abstract Mixed elements are special finite elements for vector fields, whose shape functions are not necessarily continuous in all their components. They are used in connection with ‘two-field’ formulations, for instance when one tries simultaneously to compute displacement and stress in elasticity. We present here a family of finite elements which originate from a chapter of differential geometry apparently unconnected with numerical analysis (Whitney forms) and insist on the structural properties of this family considered as a whole. This sheds a new light on mixed elements, under which they acquire a more natural character than in previous presentations.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Chichester [u.a.] : Wiley-Blackwell
    International Journal of Numerical Modelling: Electronic Networks, Devices and Fields 9 (1996), S. 19-34 
    ISSN: 0894-3370
    Keywords: Engineering ; Electrical and Electronics Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Edge-elements are introduced and discussed in the context of complementarity, a desirable characteristic of numerical methods, by which solutions which are equally satisfactory as regards both fields b and h are obtained. By making the vector potential approach easier than with standard nodal elements, edge-elements enhance complementarity. Comparative merits of both kinds of elements are discussed.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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