13 Study on Bearing Mechanism of Composite Stiffened Panel …
159
Table 13.1 Laying sequence of each part of stiffened plate
Ply
code
Positon
Ply ratio
(0/ ± 45/90)
Laying sequence
Number of
layers
Nominal
thickness
[mm]
SP1
Skin
(37.5/50/12.5)
[45/-45/0/45/90/0/-45/0] S
16
2.48
SP2
Bottom
plate of
flange
(33/50/17)
[0/45/90/0/-45/45]
6
0.93
SP3
Flange,
web and
upper
flange
(right)
(37.5/50/12.5)
[0/-45/0/90/45/0/-45/45]
8
1.24
SP4
Flange,
web and
upper
flange
(left)
(37.5/50/12.5)
[0/45/0/90/-45/0/45/-45]
8
1.24
SP5
Upper
flange
roof
(37.5/50/12.5)
[0/-45/0/90/45/0/-45/45]
8
1.24
Table 13.2 CCF300/BA9916-II, unidirectional board performance
E 1
[Gpa]
E 2
[Gpa]
G 12
[Gpa]
12
X T
[Mpa]
X C
[Mpa]
Y T
[Mpa]
Y C
[Mpa]
S
[Mpa]
124.8
9.755
5.26
0.312
1871
1291
59.7
215
102
Fig. 13.3 Location of preset
delamination of shear test
piece of type I stiffened plate
(mm)