Figure 9

Distribution of axial residual contact pressure in the tube at the 8th second for the three structures: (a) circular structure, (b) isometric-trilateral profile and (c) logarithmic spiral profile.

Distribution of axial residual contact pressure in the tube at the 8th second for the three structures: (a) circular structure, (b) isometric-trilateral profile and (c) logarithmic spiral profile.