Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Experimental Determination of Rail Fracture Properties https://rip.trb.org/View/2573188 Mon, 14 Jul 2025 13:04:59 GMT https://rip.trb.org/View/2573188 Computational Model for Predicting Fracture in Rails Subjected to Long-Term Cyclic Fatigue Loading https://rip.trb.org/View/2573185 Mon, 14 Jul 2025 12:45:49 GMT https://rip.trb.org/View/2573185 Development of In-situ Fracture Toughness Evaluation for Bridge Safety https://rip.trb.org/View/2341566 Mon, 19 Feb 2024 16:38:45 GMT https://rip.trb.org/View/2341566 Toughness Requirements for Heat-Affected Zones of Welded Structural Steels for Highway Bridges https://rip.trb.org/View/1685011 Mon, 10 Feb 2020 19:34:47 GMT https://rip.trb.org/View/1685011 Characterization of Modern High Toughness Steels for Fracture Propagation and Arrest Assessment- Phase II https://rip.trb.org/View/1523904 Thu, 12 Jul 2018 14:34:50 GMT https://rip.trb.org/View/1523904 Bayesian Network Inference and Information Fusion for Accurate Pipe Strength and Toughness Estimation https://rip.trb.org/View/1523900 Thu, 12 Jul 2018 11:51:58 GMT https://rip.trb.org/View/1523900 Nanoindentation Characterization of Aging in Different Phases of an Asphalt Concrete https://rip.trb.org/View/1403612 Wed, 13 Apr 2016 11:22:15 GMT https://rip.trb.org/View/1403612 Rail Neutral Temperature In-Situ Evaluation https://rip.trb.org/View/1313120 Thu, 19 Jun 2014 01:00:50 GMT https://rip.trb.org/View/1313120 Functionally Graded Biomimetic Energy Absorption Concept Development for Transportation Systems https://rip.trb.org/View/1301295 Fri, 07 Mar 2014 01:01:31 GMT https://rip.trb.org/View/1301295 Cost-Effective Techniques for Weld Property Measurement and Technologies for Improving Weld HE and IGSCC Resistance for Alternative Fuel Pipelines https://rip.trb.org/View/1261699 Tue, 10 Sep 2013 01:01:02 GMT https://rip.trb.org/View/1261699 Transport of Fraccing Sand - Impact of Increasing Freight Loads on Rail Infrastructure https://rip.trb.org/View/1250967 Wed, 22 May 2013 01:00:54 GMT https://rip.trb.org/View/1250967