Publications Details

Implementation and Verification of Isolated Defects for GTS Lifecycle Analyses

Bergel, Guy L.; Beghini, Lauren L.

Often, the presence of cracks in manufactured components are detrimental to their overall performance. We develop a workflow and tools in this report using CUBIT and Sierra/SM for generating and modeling crack defects to better understand their impact on such components. To this end, we provide a CUBIT library of various prototypical crack defects embedded in pipes and plates that can be readily used in a wide range of simulations, with specific application to those used in Gas Transfer Systems (GTS). We verify the accuracy of the J-integral post-processing capability in Sierra against solutions available in existing literature for the cracks and geometries of interest within the context of linear elastic fracture mechanics, and describe ongoing efforts to quantify and assess numerical errors. Through this process, we outline overall suggestions and recommendations to the user based on the proposed workflow.