Accession Number:

AD1031793

Title:

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

Descriptive Note:

Journal Article

Corporate Author:

Air Force Research LaboratoryMaterials and Manufacturing Directorate Wright Patterson Air Force Base United States

Personal Author(s):

Report Date:

2016-02-01

Pagination or Media Count:

8.0

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.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE