POSITION CORRECTING METHOD FOR INFRARED THERMOELASTIC STRESS MEASUREMENT

摘要

PROBLEM TO BE SOLVED: To provide a position correcting method for an infrared thermoelastic stress measurement, capable of precisely correcting a displacement and a deformation of an object to be measured in an image visual field of an infrared thermoelastic stress measuring apparatus.;SOLUTION: The infrared thermoelastic stress measuring apparatus with an automatic position correcting function 100 comprises: a load generating section 101 for applying a load to the object to be measured repeatedly; an infrared thermography 102 for measuring a temperature of the object to be measured in synchronization with a timing of the load; a time-series intensity distribution data acquiring section 103 for acquiring time-series intensity distribution data of the object to be measured; a displacement calculating section 104 for calculating displacement value distribution data due to the displacement and the deformation of the object to be measured, by executing a digital image correlation method using the time-series intensity distribution data; a stress measuring section 105 for measuring stress data of the object to be measured from the time-series intensity distribution data; a position correcting section 106 for correcting a position of the stress data after the displacement and the deformation of the object to be measured, based on the displacement value data; and an image displaying section 107 for displaying an infrared image after above-mentioned position correcting operation.;COPYRIGHT: (C)2007,JPO&INPIT