• A fracture-propagation-control model for pipelines transporting CO2-rich mixtures including a new method for material-model calibration 

      Nordhagen, Håkon Ottar; Munkejord, Svend Tollak; Hammer, Morten; Gruben, Gaute; Fourmeau, Marion; Dumoulin, Stephane (Journal article; Peer reviewed, 2017)
      This work considers a predictive numerical modelling approach for fracture-propagation control in CO2-transport pipelines, an area where current engineering tools do not work. Fluid-structure interaction model simulations ...
    • Calibration of Pipeline Steel Model for Computational Running Ductile Fracture Assessment 

      Gruben, Gaute; Dumoulin, Stephane; Nordhagen, Håkon Ottar; Hammer, Morten; Munkejord, Svend Tollak (ISOPE - International Offshore and Polar Engineering Conference. Proceedings;29, Chapter; Peer reviewed, 2019)
      A novel fracture calibration method is presented for material models applied in finite element analysis of pipeline steels exposed to running ductile fracture. The calibration is based on the drop-weight tear test which ...
    • Simulation of a Full-Scale CO2 Fracture Propagation Test 

      Gruben, Gaute; Dumoulin, Stephane; Nordhagen, Håkon Ottar; Hammer, Morten; Munkejord, Svend Tollak (Chapter; Peer reviewed, 2018)
      In this study, we present results from a numerical model of a full-scale fracture propagation test where the pipe sections are filled with impure, dense liquid-phase carbon dioxide. All the pipe sections had a 24″ outer ...