This paper is concerned with the modelling of the complete opto-mechanical measurement system, including
shearography instrument, loading technique and the response of the object under test and the comparison of the
simulation results with experimental results. To show the applicability of this technique, the response of an aluminium
flat plate sample under thermal load was analysed. First a finite element model of the plate was generated, using an
experimentally measured temperature profile. The strain and displacement values obtained from the finite element model
were used to simulate the phase-map in the optical part of the model. The simulated phase maps were then compared
qualitatively with experimental phase maps measured using shearography. This approach is suitable to understand the
response of components under load and to predict anomalies such as defects, thereby making the analysis of measured
phase maps easier and less empirical.
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