A mechanical impact test is performed using an incremental mechanical loading apparatus having a loading head movable in a first direction and in a second direction opposite to the first direction, and a stationary cross piece. A starter specimen is mounted between the loading head and the stationary cross piece, such that the starter specimen extends in the first direction from the loading head and the movement of the loading head in the second direction applies a tensile load to the starter specimen. A test specimen is mounted to the loading head such that a mechanical reaction force generated by the breaking of the starter specimen is imparted from the starter specimen to the test specimen. To perform the test, the loading head of the incremental mechanical loading apparatus is moved in the second direction such that the starter specimen is loaded to failure, with the result that the failure of the starter specimen causes the application of an impact force to the test specimen.
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