Table 3: Critical buckling load when applied load as 1 N is at the vertex and pinned bottom.

ModeFE sharp modelFE curved model ( = 0.25 mm)
Pinned (N)Fixed (N)Pinned (N)Fixed (N)

122.145.222.347.8
245.288.443.989.2
388.3133.688.4133.9
4133.5180.8134.4184.2