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On The Measurements Of Individual Particle Properties Via Compression And Crushing, Chunlong Liu, Fengyin Liu, Jinliang Song, Fuli Ma, Dongfang Wang, Guoping Zhang
On The Measurements Of Individual Particle Properties Via Compression And Crushing, Chunlong Liu, Fengyin Liu, Jinliang Song, Fuli Ma, Dongfang Wang, Guoping Zhang
Civil and Environmental Engineering Faculty Publication Series
An experimental study is presented to measure the elastic, yielding, and crushing properties of individual particles under compression using substrates made of aluminum alloy, stainless steel, and sapphire. Carefully selected, highly spherical individual Ottawa sand particles of 0.75-1.1 mm in nominal diameter were compressed between two smooth substrates, and the load-deformation curves were analyzed by Hertz elastic contact theory to derive their reduced modulus and Young's modulus as well as yielding and crushing strengths, which vary significantly with the type of substrate materials. Further analysis of the yielding and plastic deformation at the particle-substrate contact shows that the yield strength …