L/D	R/t	Z	M_cr (N-m)	M _/M_cr
L/D	R/t	Z	M_cr (N-m)	ξ = 0.1	ξ = 0.5	ξ = 1.0
5	500	47,650	566.47	0.621	0.407	0.347
2.5	500	11,913	566.77	0.669	0.412	0.355
1	500	1906	577.12	0.731	0.444	0.364
0.5	500	477	594.95	0.762	0.495	0.395
5	100	9530	13548	0.548	0.432	0.379
2.5	100	2383	13633	0.638	0.441	0.390
1	100	381	14159	0.738	0.491	0.393
0.5	100	95	15336	0.758	0.559	0.457