We consider subset selection and active subspace techniques for parameters in a continuum phase-field polydomain model for ferroelectric materials. This analysis is necessary to mathematically determine the parameter subset or subspace critically affecting the response, prior to model calibration using either experimental or synthetic data constructed using density functional theory (DFT) simulations. For the 180° domain wall model, we employ identifiability analysis using a Fisher information matrix methodology, and subspace selection to determine the active subspace. We demonstrate the implementation and interpretation of techniques that accommodate the model structure and discuss results in the context of identifiable parameter subsets and active subspaces quantifying the strongest influence on the model output. Our results indicate that the governing domain wall gradient energy exchange parameter is most identifiable.
Skip Nav Destination
ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 18–20, 2017
Snowbird, Utah, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5826-4
PROCEEDINGS PAPER
Identifiability and Active Subspace Analysis for a Polydomain Ferroelectric Phase Field Model
Lider S. Leon,
Lider S. Leon
North Carolina State University, Raleigh, NC
Search for other works by this author on:
Ralph C. Smith,
Ralph C. Smith
North Carolina State University, Raleigh, NC
Search for other works by this author on:
William S. Oates,
William S. Oates
Florida State University, Tallahassee, FL
Search for other works by this author on:
Paul Miles
Paul Miles
Florida State University, Tallahassee, FL
Search for other works by this author on:
Lider S. Leon
North Carolina State University, Raleigh, NC
Ralph C. Smith
North Carolina State University, Raleigh, NC
William S. Oates
Florida State University, Tallahassee, FL
Paul Miles
Florida State University, Tallahassee, FL
Paper No:
SMASIS2017-3845, V002T03A022; 9 pages
Published Online:
November 9, 2017
Citation
Leon, LS, Smith, RC, Oates, WS, & Miles, P. "Identifiability and Active Subspace Analysis for a Polydomain Ferroelectric Phase Field Model." Proceedings of the ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 2: Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation; Structural Health Monitoring. Snowbird, Utah, USA. September 18–20, 2017. V002T03A022. ASME. https://doi.org/10.1115/SMASIS2017-3845
Download citation file:
12
Views
Related Proceedings Papers
Related Articles
Adhesion and Interface Properties of Polydopamine and Polytetrafluoroethylene Thin Films
J. Appl. Mech (December,2020)
Enhanced Accident Tolerance of Thoria-Based Nuclear Fuels
ASME J of Nuclear Rad Sci (January,2020)
Semi-Empirical Potential Methods for Atomistic Simulations of Metals and Their Construction Procedures
J. Eng. Mater. Technol (October,2009)
Related Chapters
Understanding the Mechanistic Role of Lithium in Accelerated Corrosion of Zirconium Alloys Using Advanced Characterization and Atomistic Simulation
Zirconium in the Nuclear Industry: 20th International Symposium
DHTCache: A Novel Structured P2P-Based Cooperative Web Caching System
International Conference on Software Technology and Engineering, 3rd (ICSTE 2011)
Threat Anticipation and Deceptive Reasoning Using Bayesian Belief Networks
Intelligent Engineering Systems through Artificial Neural Networks