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Keywords: Fiber Optic, Broken Rail, Acoustic, Seismic, Rail Break, Wayside Systems
Abstract: This report describes the activities and presents the results of a feasibility study to examine the viability of using fiber-optic acoustic technologies to detect broken rails in...
Keywords: Concrete freeze-thaw durability, concrete railroad ties, ASTM C666
Abstract: Freezing and thawing durability tests of prestressed concrete ties are normally performed according to ASTM C666 specifications. Small specimens are cut from the shoulders of...
Keywords: 49CFR Transportation, international high speed rail standards
Abstract: This report compares international standards with selected parts of Federal Railroad Administration (FRA) Code of Federal Regulation Title 49 CFR Transportation. The parts were...
Keywords: high-speed passenger rail, very high speed passenger rail, qualification testing, acceptance testing, vehicle track interaction, vehicle dynamics, characterization testing, durability testing, reliability testing
Load Environment of Rail Joint Bars – Phase I Effects of Track Parameters on Rail Joint Stresses and Crack Growth
Keywords: rail joint bars, insulated joints, joint failures
Abstract: The load environment of joint bars was assessed under a variety of loading and track conditions. Bending stresses, thermal stresses, and residual stresses were measured on...