円柱の2次元的圧密モデル

概要

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A model for two-dimensional compaction of cylinders is proposed. The equation In (P2/P1)= k_1k_sN_t(1/Z_<s2> - 1/Z_<s1>) based on the model well described an experimental relation between the applied pressure P_a and the number of propagation sources of rearrangement, Z_<s1>, where k_l is a constant, k_s is a coefficient of friction, N_t is the total number of contacts among cylinders, Z_<s1> and P_l are the initial value of Z_s and that of P_a and Z_<s2> and P_2 are the final ones, respectively. The equation indicates that In (P2/P1) is roughly proportional to 1/Z_<s2> under the condition P1≪P2 because of Z_<s2>≪Z_<s1>, which means that a feature in the initial packing structure vanishes on; compaction. The k_s value, on the other hand, has appreciable influence on the Z_<s2>value, i. e., the final packing structure.
社団法人日本セラミックス協会の論文
1990-05-01