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Part 1 of this paper described a specimen for the measurement of high strain rate flow and fracture properties of pipe material and for tuning a strain rate dependent damage model (SRDD). In part 2 the tuned SRDD model is used for the simulation of axial crack propagation and arrest in X100 natural gas pipelines. Linear pressure drop model was adopted behind the crack tip, and an exponential gas depressurisation...
A novel specimen for the measurement of strain rate and triaxiality dependent fracture properties of metals is described. The specimen is used in a conventional tensile split Hopkinson pressure bar test. The specimen is a flat 10 mm wide and 1 mm thick notched bar. Notch lengths between 2 mm and 8 mm were used. Several tests were performed on specimens cut from an X100 pipe at room temperature and...
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