Abstract
A detailed description of fracture phenomena, observed in comminution experiments, is followed by the derivation of a similarity law of comminution which is based on reasonable physical assumptions. Starting from the simplifying suppositions of both geometrical similarity of the particles undergoing comminution and similarity of the states of stress and strain, a relationship is obtained between initial particle size and energy investment for a distinct material. On additional simplifying assumptions this leads to Rittinger's law. With the help of dimensional analysis the similarity law is extended to cover different materials and different initial flaw distributions. The results of various comminution experiments are discussed in the light of the new comminution law.
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