L/D	R/t	Z	T_cr (N-m)	T/T_cr
L/D	R/t	Z	T_cr (N-m)	ξ = 0.1	ξ = 0.5	ξ = 1.0
2.5	500	11913	1646.2	0.975	0.904	0.849
0.5	500	477	5465.5	0.909	0.754	0.767
2.5	100	2383	262320	0.948	0.845	0.754
0.5	100	95	71688	0.863	0.697	0.645