Page 296 - Marine Structural Design

272 Part II Ultimate Strength

welding and an initial deflection (wo = 0.12P2t) In addition, the stiffener has an initial
deflection (of magnitude L/ZOOO). The load-end-shortening curve shown in Figure 13.16 was
obtained by the present method by using two elements. The obtained buckling load agrees
with the experimental result within 2%. In conclusion, the position of the loading plane is a
decisive parameter.

Figure 13.15 Stiffened Plate

I

150000 A
experimental

100000

50000
A

I I I I I*
I t I I
0.0 0.0005 0.0010 0.0015 0.0020 0 0025
End shortening (m]

Figure 13.16 Load End-Shortening Curve for Stiffend Plates