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JOURNAL OF INTERDISCIPLINARY RESEARCH
Figure 5 Mesh of inner shell of LNG vessel volume 348,5 m
3
(Source: authors)
5.4 Results of computation
As
Substituting of all the necessary parameters such as load,
boundary conditions and material model, the load cases 1-4 were
obtained distribution of stress fields, as shown in Figures 6 – 13.
In neither of these cases did not exceed the maximum stress
allowable stress which gives the IMO standard.
Each analysis was calculated on the computational server. For
the calculation were used processors with attribution Intel Xeon
E5-v4640 0 2.4GHz with 32 calculation cores, allocated memory
for the first three analysis was till 78 GB and for last analysis
was this value about 178 GB. Computation time of the first three
analyses was around 90 minutes and for the last analysis, it was
282 minutes.
The results of all load cases are stress distribution plotted in two
views namely in the case where the stress distribution is shown
in outer shell, and in the case where the stress distribution is
shown on the inner shell.
5.4.1 Results for load state 1
The stress distribution at the first load cases can be seen in
Figure 6 and Figure 7. The maximum value of stress on outer
shell is in front part, the position is marked with a red arrow
(Figure 6). In the case of the inner shell, the maximum value of
stress is around the filler neck and it is also marked with a red
arrow (Figure 7).
Figure 6 Load case 1 - stress distribution on outler shell (Source: authors)
Figure 7 Load case 1 - Longitudinal crossection stress, distribution on inner shell (Source: authors)
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