Study on the Axial Compression Postbuckling Similitude Model of the Stiffened Cylindrical Shell with Dimple Imperfections

Table 7

Partial similitude simulation of axial compression nonlinear buckling of the longitudinal-ring rectangular stiffened cylindrical shell.

δ0 (m)	Material	Critical buckling load (kN·m^−1)			Error (%)
		Model	Prototype	Prediction prototype
0.1	Aluminum	595.318	6224.06	6269.24	0.73
0.3		500.759	5273.95	5273.45	−0.01
0.5		454.787	4810.45	4789.32	−0.43
0.1	Copper	1055.31	6224.06	6033.68	−3.06
0.3		898.381	5273.95	5136.44	−2.60
0.5		812.553	4810.45	4645.73	−3.42
0.1	Brass	900.281	6224.06	5976.10	−3.98
0.3		767.129	5273.95	5092.24	−3.45
0.5		692.715	4810.45	4598.27	−4.41
0.1	PVC	32.182	6224.06	5674.80	−8.83
0.3		27.270	5273.95	4808.64	−8.82
0.5		24.951	4810.45	4399.72	−8.54