Standards UIC - International railway union - Page 198

Current test methods and loads for fastening systems and concrete sleepers

Comparison of various current test methods on fastenings

Development of a standardised test procedure and formulation of recommen dations

Studies of different values which need to be taken into account with respect to the definition of the properties of concrete sleepers, and comparison of current testing methods. Determination of a unified test method and formula tion of recommendations

Study of fastening system charac teristics and test methods

Variation of normal contact stresses for different wheel/rail profile combi nations

Review of rolling contact fatigue in rails

Energy studies concerning crack forma tion and wear in rails

Stress analysis of rail rolling contact fatigue cracks Interim report (19881992)

Nondestructive measurement of longi tudinal residual stresses in rails using ultrasonic methods