RCP-S4-TESTER

To determine the resistance to rapid crack propagation, a cooled, straight section of pipe is put under internal pressure and subjected to the impact of a striker blade at the end of the pipe, which is intended to trigger a rapidly propagating crack in the axial direction of the pipe.

In order to prevent rapid pressure reduction in front of the propagating crack in short pipe samples, concentric damping discs are placed at defined intervals inside the specimen and a cylindrical cage is placed around the sample, which limits the bulging of the pipe at the edges of the fracture.

In a test series, the critical pressure or the critical temperature can be determined for crack propagation based on the crack lengths.