The Design Materials & Construction Technical Committee met in October 2014 to review in detail all ongoing research in the context of the roadmaps guiding research in each of the seven research Emphasis Areas (listed below) that are under the oversight of the Technical Committee: Assessment & Repair, Construction, Design, Materials, Strain Based Design & Analysis and Welding.
The objectives of this review are presentation of significant technical aspects of all projects to all committee members across the emphasis areas, discussion and resolution of technical concerns that surface during this cross-cutting research review, and bringing to bear the broad range of expertise, capability and operational experience of the entire Technical Committee to provide guidance to the researchers and the project teams.
Looking ahead to the 2015 funded research program, the TC also organized all the new project teams required for the recently funded research that was approved in the 2015 Ballot. Much of the continuing research funded from the 2015 Ballot has already begun. The following are the some highlights of the new research initiatives that will commence shortly, starting-up with 2015 funding.
Implications of Low Strain Hardening Steels on Design, Construction, and Maintenance
The objective of this research is to understand the implications for operators of the widespread use of modern microalloyed steels which typically can exhibit different performance characteristics than older steels. The research will take a comprehensive look to develop useful insights for the complete lifecycle of energy pipelines.
Composite Repair Load Transfer Study
In order for composite repair systems to work properly, it is essential that load be transferred from the carrier pipe to the reinforcing composite material. For this to take place, composite repair systems must be properly designed and installed so that they provide adequate reinforcement for the full range of operating conditions. This research will draw upon insights gained from prior PRCI research, as well as additional studies to quantify issues related to load transfer. The work will include a review of prior testing, finite element modeling, as well as full-scale testing to further clarify issues related to load transfer.
Evaluation of Girth Weld Flaws in Vintage Pipelines
The objective of this research is to develop assessment models for vintage pipelines to reduce uncertainties in performing assessments beyond the range currently achievable employing traditional stress-based design and analysis methods. The research will seek complimentary tools operators can use to make the full use of the results of prior PRCI research through which mechanical properties of vintage welds were generated. This will permit the better integration and use of in-line inspection and other inspection results.