METHOD TO DETECT DAMAGE, DEVICE, PROGRAM AND COMPUTER-READABLE RECORD MEDIUM FOR DAMAGE DETECTION Russian patent published in 2014 - IPC G01N3/00 

FIELD: measurement equipment.

SUBSTANCE: if the target part of damage detection returned from the plastic condition into the elastic condition, provided that the stress of part return into elastic condition is (x, y)=(σ2, σ1) (maximum main stress: σ1, minimum main stress: σ2) in the coordinate plane (x, y), completion of damage detection for the target part of damage detection with usage of the voltage R of the new start of fluidity determined by the crossing between the straight line that meets the ratio y=(σ1/σ2)x, and the fluidity curve produced on the basis of the plastic condition of the target part of damage detection.

EFFECT: possibility to detect damage with high accuracy, even if a metal structure returned from plastic condition into elastic one.

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