Assessment of residual ultimate strength for wide dented stiffened panels subjected to compressive loads

Effect of a central dent on the ultimate strength of narrow stiffened panels under axial compression

“…The collapse mode is different between the short and long stiffened panels, hence the specimens with different frame spacing are adopted to reduce the uncertainties introduced through the boundary conditions as they are important contributions to the overall uncertainty of the prediction. The results of the wide panels in Table 2 [22] are also compared with that of the narrow ones adopted in the present paper. The dimensions of the frames and the stiffeners are L 60 Â 40 Â 6 mm 3 and I 30 Â 8 mm 2 , respectively.…”

“…Figs. 6-9 show the equivalent stress distributions and deformations of the stiffened panels including loading and unloading the indenter, which include the results of the narrow and wide panels in [22].…”

“…This work belongs to an extended series of investigations that include wide panels with four stiffeners [22] which allows the understanding of the effect of width on the strength of stiffened panels. The results of the narrow and wide panels are also compared here.…”

“…Loading the indenter for the wide panel FB6B2F6 in[22]. (a) Deformation distribution (unit: m, δ d ¼39.8 mm) (b) Equivalent stress distribution (Pa).…”

Stress–strain analysis of dented rectangular plates subjected to uni-axial compressive loading

“…Xu and Guedes Soares [9] studied the influence of a local dent on the collapse behaviour of stiffened panels. The effect of residual stresses caused by the local dent on the collapse behaviour of stiffened panels was also investigated.…”