Accession Number:

AD1031793

Title:

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

Personal Author(s):

• Criner,Amanda K.
• Schehl,Norman

Corporate Author:

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

Report Date:

2016-02-01

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.

Descriptive Note:

Journal Article

Supplementary Note:

AIP Conference Proceedings , 1706, 1, 01 Jan 0001, 01 Jan 0001,

Pages:

0008

Descriptors:

• nondestructive testing
• FATIGUE (MECHANICS)
• acoustic waves
• THERMOACOUSTICS
• DATA ANALYSIS
• polymer matrix composites
• TITANIUM COMPOUNDS
• Computational modeling

Identifiers:

• 10014

Subject Categories:

Communities Of Interest:

• Energy and Power Technologies

Distribution Statement:

Approved For Public Release;

Contract Number:

FA8650-14-D-5224-0003

File Size:

1.13MB