Method for detecting stresses

Details Method for detecting stresses Method for detecting stresses

1995-03-17

1996-02-13

Williams, Hezron E.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Indicating coating or sheet providing direct visual indication

73862624, G01L 100

Patent

active

054904269

ABSTRACT:
A method for detecting stresses includes the steps of dispersing a fluorescent substance in a solid portion where stresses are to be detected, measuring fluorescence decay time of the fluorescent substance dispersed in the solid portion, and detecting stresses in the solid portion based on the measured fluorescence decay time. The method enables to non-destructively detect stresses in resin-molded products without impairing their mechanical properties.

REFERENCES:
patent: 4768886 (1988-09-01), Hirschfeld et al.
patent: 4781056 (1988-11-01), Noel et al.
Non-Destructive Inspection Technique Series "Strain Measurement B" 1980; Cover Page & pp. 220-225.

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