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

Table 5

Complete similitude simulation of nonlinear buckling of longitudinal-ring rectangular stiffened cylindrical shell under axial compression.

δ0 (m)	Model		Prototype			Error (%)
	λ (m)	Critical buckling load/kN·m^−1	λ (m)	Critical buckling load (kN·m^−1)	Critical buckling load for predicted prototype (kN·m^−1)
0.1	0.048	715.790	0.480	7090.300	7157.900	0.950
	0.060	631.083	0.600	6224.060	6310.830	1.390
	0.072	592.084	0.720	5985.940	5920.840	−1.080
0.3	0.048	683.33	0.480	6780.880	6833.300	0.770
	0.060	515.110	0.600	5273.950	5151.100	−2.320
	0.072	489.879	0.720	4895.220	4898.790	0.070
0.5	0.048	642.638	0.480	6382.980	6426.380	0.680
	0.060	483.181	0.600	4810.450	4831.810	0.440
	0.072	448.419	0.720	4476.690	4484.190	0.170

Note. is the sum of the thickness of the cylindrical shell skin and the height of stiffeners.