Shearography nondestructive inspection (NDI) based on the use of thermal stress in studied in view of detecting defectsin composite materials. In particular, we would like to extract the content of information that is present in thedeformation due to the evolving deformation during the variation of the stress. For that a good approach is to try to applyprocessing techniques which are largely applied in thermography NDI for the same purpose. We will discuss thenecessity of pre-processing the shearography data to make them compatible with thermography inspired processingtechniques. After that we will present the statistical analysis based on principal components, and we will discuss thepossibility of deterministic analysis based on the temporal behavior during and after heating.
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