RP3.2-05B: Pipeline Tensile strain capacity – Project 2 Experimental evaluation
This project is phase 2 of an overarching three-phase project which studies the girth weld failure modes of pipelines. The project 2 evaluates the tensile strain capacity of pipeline under weld strength under- matching condition.
This project carries out experimental investigation of the major contributors to possible pipe failures in the vicinity of girth welds. The current hypotheses have propositioned that the major contributors can be weld strength under-matching, heat affected zone (HAZ) softening, soft root, weld bevel and bending loads. To address the main source of the issue this research studies the tensile strain capacity of welded pipe under various conditions. The main objectives of this research are to:
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|Commencement / End Date||December 2019 to December 2022|
|Outcomes / Impact||
Industry benefits from the better understanding of tensile strain capacity, and specifically tensile strain capacity under various weld strength matching conditions (over and under matching). This knowledge guides designers and project proponents to optimise pipeline designs whilst still delivering safe and reliable pipelines.
|Partners||University of Wollongong, Jemena, APA Group,LFF Group and independent advisors|
Dr Fari Mahdavi
Research Program Coordinator