Efficient Implementation Algorithms for Homogenized Energy Models

Abstract

The homogenized energy framework quantifying ferroelectric and ferromagnetic hysteresis is increasingly used for comprehensive material characterization and model-based control design. For operating regimes in which thermal relaxation mechanisms and stress-dependencies are negligible, existing algorithms are sufficiently efficient to permit device optimization and the potential for real-time control implementation. In this paper, we develop algorithms employing lookup tables which permit the high speed implementation of formulations which incorporate relaxation mechanisms and electromechanical coupling. Aspects of the algorithms are illustrated through comparison with experimental data.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA439961

Entities

People

  • Ralph C. Smith
  • Thomas R. Braun

Organizations

  • North Carolina State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Computational Science
  • Computations
  • Couplings
  • Differential Equations
  • Efficiency
  • Electric Fields
  • Equations
  • Experimental Data
  • Ferromagnetic Materials
  • Magnetic Fields
  • Magnetic Properties
  • Materials
  • Physical Properties
  • Three Dimensional
  • Two Dimensional

Readers

  • Computational Modeling and Simulation
  • Materials Science and Engineering.
  • Parallel and Distributed Computing.

Technology Areas

  • Microelectronics