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Optické interferometrické metody využité pro studium interakcí akustických vln s nehomogenitami materiálu
Trnka, Jan ; Dvořáková, Pavla
The paper is concerned with interpretation of transient wave phenomena occurring in impacted thin plate with simple structural inhomogenities. Wave phenomena in the vicinity the hole or the added mass, is studied by means of simultaneous application of the double pulse ESPI and D-CH laservibrometry. FFT is used to analyse point-wise history of velocity or displacements in frequency domain.

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