Page 360 - Mechanics Analysis Composite Materials

Chapter 7. Environmental, special loading, and manufacturing effects 345

P P P

a a a a

(a) (b) (c>

Fig. 7.37. Structure of the laminates under study.

1020,lp
lr n

0 ' 105t,sec
(a>
1.8
-1 -

-2 -

0 I 105t,sec
3.3 3.4 3.5 3.6 3.7 3.8 3.9

105t,sec

(c>
-1
1020zlp
-1.5
Fig. 7.38. Normal stress related to external pressure acting in section a-a of the laminates in
Fig. 7.37(a)-(c). respectively.