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Sensitivity Analysis for a Quantum Informed Ferroelectric Energy Model

[+] Author Affiliations
Lider S. Leon, Ralph C. Smith

North Carolina State University, Raleigh, NC

William S. Oates, Paul Miles

Florida A & M and Florida State University, Tallahassee, FL

Paper No. SMASIS2016-9035, pp. V001T02A001; 7 pages
doi:10.1115/SMASIS2016-9035
From:
  • ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Multifunctional Materials; Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Structural Health Monitoring
  • Stowe, Vermont, USA, September 28–30, 2016
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5048-0
  • Copyright © 2016 by ASME

abstract

We perform global sensitivity analysis for parameters in a continuum energy model for ferroelectric materials, which is informed by density functional theory (DFT). Specifically, we use global sensitivity analysis to rank the sensitivity of phenomeno-logical parameters governing the Landau and electrostriction energy for single-domain ferroelectric lead titanate. These techniques include Pearson correlations constructed directly from input and output relations, Sobol sensitivity indices, and Morris indices.

Copyright © 2016 by ASME

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