Page 78 - Ship Construction.DJ Eyres 6Ed
P. 78
Ch08-H8070.fm Page 67 Wednesday, October 18, 2006 7:29 AM
Stresses to which a Ship is Subject 67
Crest
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งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี
Torsion
box
Crest
Container ship
section
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FIGURE 8.4 Torsion
OTHER LOCAL STRESSES Ship structural members are often subjected
to high stresses in localized areas, and great care is required to ensure that
these areas are correctly designed. This is particularly the case where various
load carrying members of the ship intersect, examples being where longi-
tudinals meet at transverse bulkheads and at intersections of longitudinal
and transverse bulkheads. Another highly stressed area occurs where there
is a discontinuity of the hull girder at ends of deck house structures, also at
hatch and other opening corners, and where there are sudden breaks in the
bulwarks.
Brittle Fracture
With the large-scale introduction of welding in ship construction much
consideration has been given to the correct selection of materials and struc-
tural design to prevent the possibility of brittle fracture occurring. During the
