Distorsion of Isochromatic Fringes in the Process of Stress Measurement in Structural Part by Photoelasticimetry
Journal Title: Strojnicky casopis - Journal of Mechanical Engineering - Year 2018, Vol 68, Issue 2
Abstract
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.
Authors and Affiliations
Peter Frankovský, Oskar Ostertag and Ingrid Delyová
Keywords
Related Articles
- EP ID EP43939
- DOI https://doi.org/10.2478/scjme-2018-0017
- Views 191
- Downloads 0
Evaluation of Fracture Parameters for Cracks in Coupled Thermoelasticity for Functionally Graded Materials
The finite element method (FEM) is developed for coupled thermoelastic crack problems if material properties are continuously varying. The weak form is utilized to derive the FEM equations. In conventional fracture the...
Determination of Tungsten Inert Gas Welding Input Parameters to Attain Maximum Tensile Strength of 316L Austenitic Stainless Steel
Weld quality mainly depends on the weld bead geometry and mechanical-metallurgical characteristics of the welded joint which has a direct relationship with the type of welding process being used and its input process p...
A Pilot Study in Order to Examine the Relationship between the Degree of Visual Impairment of Patient and His Postural Stability
The main aim of the pilot study was to evaluate the relationship between degree of visual impairment of patient and his postural stability. The article contains basic explanation and requirements for stabilography rese...
CFD Analysis of Downcomer of Nuclear Reactor VVER 440
The paper is focused on CFD analyses of the coolant flow in the nuclear reactor VVER 440. The goal of the analyses is to investigate the influence of the orifice diameter on the mass flow through individual fuel assemb...
FSW Numerical Simulation of Aluminium Plates by SYSWELD - Part II
Friction Stir Welding (FSW) is one of the most effective solid state joining processes and has numerous potential applications in many industries. The simulation process can provide the evolution of physicals quantitie...