Figure 7

(a) Ring approximated as a cuboid on the principal axes of the moment tensor of a ring. \(l_1\), \(l_2\), and \(l_3\) represent the length of the sides of the cuboid (\(l_1\le l_2 \le l_3\)). (b) Averaged ratio of the sides of the cuboid \(l_{2}/l_{3}\) for each ring size. (c) Schematic figures of ring deformation for small and large rings of SGUP and DSG. (d) Distribution of \(l_1\), \(l_2\), and \(l_3\) for OSG, SGUP and DSG. (e) Distribution of \(l_2\) calculated for each ring size. Dashed lines represent the peak position of the \(l_2\) distribution for guide. The values in \((\cdot )\) in the legends denote the density of silica glass [g/cm\(^{3}\)].