“…As the compaction ratio K -L / R in creases, the packing density increases up to p = 1 at = ( n L / 6 h ) l/3. Experiments [12][13][14][15], theoretical con siderations [9][10][11][12][13]15,22,28,36], and numerical simulations [29][30][31]35,36,37] suggest that once K exceeds the threshold value K lh ( K lh & 1.7 [29,30]) the sheet packing density exhibits a power-law dependence on P. That is,…”