Hyperspectral nondestructive evaluation of early damage and degradation in metallic materials

Dan Xiang; Honam Yum

doi:10.1117/12.2519076

14 May 2019 Hyperspectral nondestructive evaluation of early damage and degradation in metallic materials

Dan Xiang, Honam Yum

Proceedings Volume 10986, Algorithms, Technologies, and Applications for Multispectral and Hyperspectral Imagery XXV; 1098610 (2019) https://doi.org/10.1117/12.2519076
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

In this work, we investigated a Hyperspectral NDE (HySpecNDE) technique for detection of early damage and material degradation in metallic structures and components. A hyperspectral imaging camera in middle wavelength infrared (MWIR) was used to examine metallic specimens with damage and material degradation created from tensile testing. Hyperspectral data in the MWIR range at ambient and elevated temperatures was acquired and analyzed with a set of data analysis and image processing algorithms. By comparing the digital image correlation results during tensile testing and the hyperspectral analysis results, we demonstrated that HySpecNDE technique unveils the variations in emission intensity, which correspond to early damage and material degradation in materials.

Conference Presentation

Citation Download Citation

Dan Xiang and Honam Yum "Hyperspectral nondestructive evaluation of early damage and degradation in metallic materials", Proc. SPIE 10986, Algorithms, Technologies, and Applications for Multispectral and Hyperspectral Imagery XXV, 1098610 (14 May 2019); https://doi.org/10.1117/12.2519076

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