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Chapter 13 Collapse Analysis of Ship Hulls 213
13.6.2 Collapse of an Upper Deck Structure
The next example, shown in Figure 13.17, is a longitudinally- and transversely stiffened plate.
The plate is analyzed by means of four nodal plate elements in an ISUM procedure by Ueda et
al (1986). The plate has an average initial deflection of w0/t = 0.25 and a welding residual
stress of (T, /a, = 0.2. The shifting of the neutral axis is not considered in this example. The
result of the analysis, as shown in Figure 13.18, provides a very good agreement between the
FOUR-NODE ISUM procedure and the present procedure. Both were evaluated with respect
to buckling loads and end shortening loads by using only 24 nodes.
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Figure 13.17 Upper Deck Structure in Compression
