An ultrasonic probe has been designed, evaluated and shown capable of measuring longitudinal stress changes in railroad rails. The probe uses the effect of applied stress on wave velocity (acoustoelastic effect) to determine the stress change. Both laboratory and field evaluation has shown that the probe is capable of measuring stress changes with an accuracy of plus or minus 6.9 MN/sq m (plus or minus 1 ksi).
Nondestructive Measurement of Longitudinal Rail Stresses: Application of the Acoustoelastic Effect to Rail Stress Measurement
1978
124 pages
Report
Keine Angabe
Englisch
Nondestructive Measurement of Longitudinal Rail Stresses
NTIS | 1975
|Rail traffic steel rail nondestructive inspection equipment
Europäisches Patentamt | 2021
|Study on measurement of rail longitudinal force on slab track by rail lifting
British Library Conference Proceedings | 2002
|