Analysis of Non-contact Acousto Thermal Signature Data (Postprint)

Abstract

The non-contact acousto-thermal signature (NCATS) is a nondestructive evaluation technique with potential to detect fatigue in materials such as noisy titanium and polymer matrix composites. The determination of underlying physical mechanisms and properties may be determined by parameter estimation via nonlinear regression. The nonlinear regression analysis formulation, including the underlying models, is discussed. Several models and associated data analyses are given along with the assumptions implicit in the underlying model. The results of these analyses are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2016
Accession Number
AD1031793

Entities

People

  • Amanda K. Criner
  • Norman Schehl

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Boundaries
  • Data Analysis
  • Differential Equations
  • Diffusivity
  • Equations
  • Governments
  • Handbooks
  • Information Science
  • Materials
  • Partial Differential Equations
  • Polymer Matrix Composites
  • Regression Analysis
  • Thermal Diffusivity

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Computational Modeling and Simulation
  • Structural Health Monitoring of Composite Structures.