#7604. Suitability of DIC and ESPI optical methods for monitoring fatigue damage development in X10CrMoVNb9-1 power engineering steel

October 2026publication date
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Journal’s subject area:
Civil and Structural Engineering;
Mechanical Engineering;
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Abstract:
The aim of this research was to compare the effectiveness of two different optical measurement techniques (digital image correlation—DIC and electronic speckle pattern interferometry—ESPI) during fatigue damage development monitoring in X10CrMoVNb9-1 (P91) power engineering steel for pipes. The specimens machined from the as-received pipe were subjected to fatigue loadings and monitored simultaneously using DIC and ESPI techniques.
Keywords:
Damage; Digital image correlation (DIC); Electronic speckle pattern interferometry (ESPI); Fatigue development; P91 steel

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