PHOTOELASTIC STRESS ANALYZER

摘要

PROBLEM TO BE SOLVED: To obtain a value proportional to the principal stress difference directly in real time at a plane stress analyzing point of a photoelastic member while shortening the time required for analysis. ;SOLUTION: A polarized light passed through a photoelastic member 2 is split into at least three luminous fluxes, i.e., plane-polarized lights L6, L7, L8 each having a plane of polarization where the angle for a predetermined plane of polarization is different. A value proportional to the principal stress difference at a plane stress analyzing point of the photoelastic member 2 is operated based on the intensity of plane-polarized lights L6, L7, L8.;COPYRIGHT: (C)1997,JPO