Consideration of the light intensity equation in holographic photoelasticity by simulation

Autor: Hiroaki Ohsawa, Shunji Kawashima
Rok vydání: 1990
Předmět:
Zdroj: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 56:1491-1495
ISSN: 1884-8338
0387-5008
DOI: 10.1299/kikaia.56.1491
Popis: Light intensity equations for holographic photoelasticity, conventional photoelasticity and other holographic or photoelastic method which correlate experimental fringe patterns with distributions of principal stresses, strains and displacements, are described in unified form. A new method for producing theoretical fringe patterns using a personal computer interfaced to a dot printer is also presented. Comparison of theoretical fringe patterns generated by this method with experimental ones facilitates examination of analytical solutions of elastic problems, and it shows that in holographic photoelasticity, when sensitivity g for (σ1+σ2) is much greater than sensitivity f for (σ1-σ2), the light intensity equation should be simply given by I=(1/2)+(1/2) cos2β to avoid complicated treatment.
Databáze: OpenAIRE