Abstract
In this work, a non-contact ultrasonic method based on laser generation and EMAT (electromagnetic acoustic trans- ducer) detection is proposed for residual stress measurement. A numerical method based on finite element model is established to simulate the laser-generated ultrasound in pre-stressed media to determine the capability and sensitivity of this method. Fi- nally, the laser-EMAT ultrasonic method isstudied to measure the residual stress in bearing balls to assess the fatigue level of the bearings.
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Schedule a callMore From: International Journal of Applied Electromagnetics and Mechanics
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