On Interpretation of Fringe Patterns Produced by Time Average Photoelasticity

Time-Averaged Photoelastic Stress Analysis of the Ultrasonic Wave in a Strip

“…In 2004, the authors [10] presented the theory of this new experimental technique and concluded that the light intensity in the obtained experimental image can be expressed as the function of 1jJ 0 ($). Independently, in 2005, based on their purely mathematical derivations, Ragulskis and Ragulskis [11] also introduced the time-averaged photoelasticity and their results agreed with the authors' proposed theory. In their paper, the reconstructed photoelastic fringe pattern calculated from the time-averaged photoelastic theory matches well with the experimentally obtained static fringe pattern.…”

Review of RGB photoelasticity

“…Another field of application of digital photoelasticity regards the time average photoelasticity [36,37].…”

Measurement of Transverse Vibrations of Piezoelectric Ceramics by Atomic Force Microscopy

“…Nevertheless, the experimental results demonstrate that the duration of transient processes (after the excitation frequency is changed) is very small and only the steady‐state reaction of piezoceramics is observed. Therefore, the excitation and the reaction frequencies can be considered the same even in the presence of complex material properties (like dynamic viscoelasticity) 12 …”

“…Therefore, the excitation and the reaction frequencies can be considered the same even in the presence of complex material properties (like dynamic viscoelasticity). 12 The observable grating caused by the periodic elevation of the measured surface can be used for identification of the amplitude of vibrations. Periodic elevations are modulated on top of the static surface structure of the sample.…”