This research program was conducted using experimental line pipe in full pipe sections to explore two objectives. The first objective was to determine whether the critical flaw size--toughness relationship developed in the A.G.A. NG-18 Research program for smaller diameter thin-wall pipes is applicable to large-diameter heavy-wall high-strength line pipe. The second objective of this investigation was to determine the relationship between the transition temperatures predicted by the Drop Weight Tear Test (DWTT) and the Dynamic Tear Test (DTT) with the fracture propagation transition temperature...
This research program was conducted using experimental line pipe in full pipe sections to explore two objectives. The first objective was to determine whether the critical flaw size--toughness relationship developed in the A.G.A. NG-18 Research program for smaller diameter thin-wall pipes is applicable to large-diameter heavy-wall high-strength line pipe. The second objective of this investigation was to determine the relationship between the transition temperatures predicted by the Drop Weight Tear Test (DWTT) and the Dynamic Tear Test (DTT) with the fracture propagation transition temperature determined from experiments on full-size sections of line pipe.