Research on the Method of Absolute Stress Measurement for Steel Structures via Laser Ultrasonic
Hongsong Tian,
Yujiang Kong,
Bin Liu
et al.
Abstract:Accurate measurement of the stress in steel structures is crucial for structural health monitoring. To achieve this goal, a novel technique, the laser ultrasonic technique, was used in absolute stress measurement in this study. The feasibility of this technique has been verified through theoretical analysis and finite element (FE) analysis. A stress measurement experiment in steel specimens was conducted and the relationship between ultrasonic relative wave velocity and stress was explored. The results reveale… Show more
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