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Coupled Structural, Thermal, Phase-Change and Electromagnetic Analysis for SuperconductorsDescribed are the theoretical development and computer implementation of reliable and efficient methods for the analysis of coupled mechanical problems that involve the interaction of mechanical, thermal, phase-change and electromagnetic subproblems. The focus application has been the modeling of superconductivity and associated quantum-state phase-change phenomena. In support of this objective the work has addressed the following issues: (1) development of variational principles for finite elements, (2) finite element modeling of the electromagnetic problem, (3) coupling of thermal and mechanical effects, and (4) computer implementation and solution of the superconductivity transition problem. The main accomplishments have been: (1) the development of the theory of parametrized and gauged variational principles, (2) the application of those principled to the construction of electromagnetic, thermal and mechanical finite elements, and (3) the coupling of electromagnetic finite elements with thermal and superconducting effects, and (4) the first detailed finite element simulations of bulk superconductors, in particular the Meissner effect and the nature of the normal conducting boundary layer. The theoretical development is described in two volumes. This volume, Volume 1, describes mostly formulations for specific problems. Volume 2 describes generalization of those formulations.
Document ID
19960029073
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Felippa, C. A. (Colorado Univ. Boulder, CO United States)
Farhat, C. (Colorado Univ. Boulder, CO United States)
Park, K. C. (Colorado Univ. Boulder,CO United States)
Militello, C. (Colorado Univ. Boulder,CO United States)
Schuler, J. J. (Colorado Univ. Boulder,CO United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1996
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-194457
CU-CSSC-93-06-Vol-1
NAS 1.26:194457
E-8471
Accession Number
96N29635
Funding Number(s)
PROJECT: RTOP 505-10-11
CONTRACT_GRANT: NAG3-934
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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