photoelasticity


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Related to photoelasticity: birefringence

photoelasticity

[¦fōd·ō‚i‚las′tis·əd·ē]
(optics)
An experimental technique for the measurement of stresses and strains in material objects by means of the phenomenon of mechanical birefringence.
References in periodicals archive ?
Interaction of waves and fields such as in photoelasticity or acoustoelasticity shows explicitly how new wave structures may be formed and how informative they are (see overview by Engelbrecht [5]).
b) Photographs experimentally taken utilizing dynamic photoelasticity in conjunction with high-speed cinematography show the time-dependent isochromatic fringe patterns (distributions of [[tau].
Key words: stress analysis, FEM, photoelasticity, screw joint
Photoelasticity was used as a qualitative method but it presents too many difficulties in the quantitative analysis of stress, and also this method doesn't define which type of stress is generated.
The module considers polymer fluid flow, heat transfer, viscoelasticity, photoelasticity, and a stress-optical law to investigate birefringence in optical parts molded of materials such as acrylic, PC, and COC (cyclic olefin copolymer).
The technique, dubbed photoelasticity, has been used for decades in industry.
The main attention nowadays is the integrated photoelasticity for the measurement of 3D stress fields.
Photoelasticity was also used for visual examination of the plastic zone size.
The mathematical model of calculation obtained with the finite element method was validated using the photoelasticity technique that gave a fairly accurate picture of the stress variation.
Transparent polycarbonate will be used in the experiments; photoelasticity is to be used to calculate residual stress of specimen.
His discoveries in photoelasticity and thermoelectricity has a worldwide impact to engineering and technology also nowadays, in the 21st century, including the current research of Estonian scientists and engineers.
Brewster's photoelasticity law states that the index of refraction in a strained material becomes directional.