Non-Destructive Quantitative Residual Stress Assessment Tool

2014Summary ReportPDFTech ReportDTRT57-11-C-10024Residual stressPipelinesResidual stressSteel pipelinesShape-base assessmentPipeline probe systemsG2MTUnited StatesUnited States. Office of Pipeline SafetyLasseigne, Angelique N.Jackson, JoshuaKoenig, Kamalu M.United States. Office of Pipeline SafetyUnited States. Pipeline and Hazardous Materials Safety AdministrationUS Transportation CollectionMechanical damage is the greatest global threat to pipeline integrity. The challenge was to develop and u9lize electromagne9c sensors to evaluate mechanical damage severity. G2MT demonstrated a unique next\u2010genera9on solu9on for pipeline integrity assessment. The residual stresses around mechanical damage (e.g. dents, gouges, and wrinkle bends) determines the speed of cracking and failure. G2MT\u2019s quan9fied residual stress analysis provides an effec9ve method for real \u20109me assessment of the severity of the damage that will drama9cally improve pipeline repair and integrity management. G2MT achieved this goal by performing 3\u2010D residual stress measurements on different forms of mechanically damaged steel pipelines in comparison with neutron\u2010 based and destruc9ve tes9ng prac9ces.78