I'm doing a research project which aims to develop a mathematical correlation for fatigue life prediction at resonance frequency. An experimental setup is also to be created which would be used to carry out the experiment, cyclic loading cycles until failure. For this a Cussons linear vibrator apparatus will be used, which also knows as mechanical shaker, and a suitable test specimen and clamping arrangement has to be designed. I'm considering using a cantilever beam design for test specimen, since it's a continuous system and it's easy to achieve the natural frequency that way. The material is yet to be finalized, but I'm considering glass, since it is brittle. Suggest me which material would be ideal to carry out this experiment, like which one would realize fatigue failure in a reasonable amount of time? And which parameters are to be investigated in order to successfully carry out the experiment?