Trans RINA, Vol 154, Part A2, Intl J Maritime Eng, Apr-Jun 2012
different from the other configurations, which cannot consider the interference between adjacent panels and is not recommended. For the 3 bays model, because the constraint of the external
side bay with restrained
boundary condition is weaker than the middle bay, such as LS2-A3, the external side bays collapse instead of the middle bay as shown in Figure 32. This phenomenon is similar to the experiment, in which there was a premature collapse in the middle part of one of the external spans of the panel due to a non-uniform distribution of load, especially near the contact with the supports [12]. The ultimate average stresses
achieved were very low
compared to the expected result in the tests. Hence, for the 3 bays model, the loading edges in the longitudinal direction should be constrained strong enough to avoid the external
side bay failure before the middle bay collapse in experiment. 1 NODAL SOLUTION
STEP=1 SUB =8 TIME=.484055 SEQV
Z (AVG)
DMX =.005608 SMN =.821E+07 SMX =.690E+09
Y X APR 5 2010 17:25:16 BS2-A3 Figure 26 Equivalent stress distributions for 3bay-C4 1 NODAL SOLUTION
STEP=1 SUB =20 TIME=.261732 SEQV (AVG) DMX =.015352 SMN =.503E+07 SMX =.690E+09
MAR 16 2011 18:14:19
Y Z X MX MN
.503E+07 .811E+08
.157E+09 .233E+09
.309E+09 .386E+09
.462E+09 .538E+09
.614E+09 .690E+09
MN
MX .821E+07 .840E+08 BS2-A3 Figure 23 Equivalent stress distributions for 3bay-C1 1 NODAL SOLUTION
STEP=1 SUB =8 TIME=.484055 SEQV (AVG) DMX =.005608 SMN =.821E+07 SMX =.690E+09
Z Y X
APR 8 2010 00:59:34
.160E+09 .235E+09 .311E+09 .387E+09 .463E+09 .538E+09 .614E+09 .690E+09 Figure 27 Equivalent stress distributions for 2bay1-C5
MN
MX .821E+07 BS2-A3 Figure 24 Equivalent stress distributions for 3bay-C2 1 NODAL SOLUTION
STEP=1 SUB =26
TIME=.226274 SEQV
(AVG)
DMX =.027007 SMN =.125E+08 SMX =.690E+09
MX MN Z Y X
MAY 12 2010 00:49:09
.840E+08 .160E+09 .235E+09 .311E+09 .387E+09 .463E+09 .538E+09 .614E+09 .690E+09 Figure 28 Equivalent stress distributions for 2bay1-C6 1 NODAL SOLUTION
STEP=1 SUB =23 TIME=.312176 SEQV
MAR 16 2011 18:28:43
Y (AVG)
DMX =.015879 SMN =.141E+08 SMX =.690E+09
Z X MX
MN
.141E+08 .892E+08 .125E+08 .878E+08 BS2-A3 Figure 25 Equivalent stress distributions for 3bay-C3 ©2012: The Royal Institution of Naval Architects A-75 .163E+09 .238E+09 .314E+09 .389E+09 .464E+09 .539E+09 .615E+09 .690E+09 BS2-A2 Figure 29 Equivalent stress distributions for 2bay2-C7
.164E+09 .239E+09
.314E+09 .390E+09
.465E+09 .540E+09
.615E+09 .690E+09
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