STRESS MEASUREMENT METHOD AND PHOTOELASTICITY COATING

摘要

PROBLEM TO BE SOLVED: To provide a stress measurement method that is highly accurate and high in sensitivity even under an environment large in a temperature change, and to provide an elasticity coating including a measured object.;SOLUTION: A stress measurement method includes: obtaining a photoelasticity coating having a measured object, an adhesion layer, and a photoelasticity layer included in this order, by adhesion based on the adhesion layer; and detecting a change in birefringence of the photoelasticity layer occurring due to a stress of the measured object in the photoelasticity coating, in which the photoelasticity coating includes a thermal stress buffer layer between the measured object and the photoelasticity layer. Further, the photoelasticity coating to be used in the stress measurement of the measured object, includes the measured object, the adhesion layer, and the photoelasticity layer in this order, and includes the thermal stress buffer layer between the measured object and the photoelasticity layer. The measured object includes a metal, and the thermal stress buffer layer includes epoxy resin.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT