Distorsion of Isochromatic Fringes in the Process of Stress Measurement in Structural Part by Photoelasticimetry

Autor: Frankovský Peter, Ostertag Oskar, Delyová Ingrid
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of Mechanical Engineering, Vol 68, Iss 2, Pp 53-60 (2018)
Druh dokumentu: article
ISSN: 2450-5471
DOI: 10.2478/scjme-2018-0017
Popis: In the article we show the possibility of distorting the results of the experiment by photoelasticity path, in case the isochromatic fringe patterns are recorded by the camera. The recording of the color spectrum may be distorted by inappropriate selection of the recording medium, which is reflected by different types of aberrations. Transferring a record to a computer allows you to automate the experiment process, thus saving time to work with isochromatic fringes. As an example, we present the experimental determination of the stresses of the rotor with a symmetrical arm. The analysis was performed using software developed by the authors. This software enables full automation of the experiment process. The rotor is investigated by the method of reflection photoelasticity. The experimental solution is realized as a case of periodically repeating dynamic effects, in which a stroboscopic source of white light is needed. The results of the experiment are compared with the numerical solution and their dependence is represented by diagram.
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