Abstract
The fracture probabilities and the fracture load, under an impact load, of specimens of glass beads of five grain sizes were measured with a newly constructed impact testing apparatus. The main results are as follows: (1) The relationship between the fracture probability (Pf) and the impact energy (E) is expressed by the following equation; Pf=1-exp.[-(E/E0)1.5]; (2) The fracture probability of the particle increases proportionally with the value of Young's modulus of the drop weight; (3) The distribution of the fracture load of the particle shows good agreement with Weibull's distribution function; and (4) The values of Weibull's modulus are decreased and the mean fracture load of the particle are increased with an increase in the impact velocity of the drop weight.
