13th International Conference on Fracture June 16–21, 2013, Beijing, China -6- made from EN24T steel. Two linear voltage displacement transducers (LVDT) were mounted on each side of the upper and lower end to measure the total displacement of the structure. Also, two additional LVDTs were connected to the C(T) specimen to measure load line displacement. Four high temperature strain gauges (ZFLA-3-11) were mounted on the middle and side bars at 900 intervals to measure the residual force. In total seven thermocouples (3-specimen, 1-room, 3-strain gauge) were connected to measure the specimen temperature, room temperature and temperature at the point of application of strain gauges. A direct current potential drop (PD) system was connected to the C(T) specimen to measure crack initiation and growth. The overall arrangement was fitted into a creep test rig so that an external load was applied to the assembly via a lever arm arrangement. Figure 5. Three bar test rig (All dimensions in mm)
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