1,000


- I I I II I-I I~~][ ~~1~T7


E3 = 15
E4 = 10


All Moduli are in ksi




 El = 1000


E1 = 100


I I I l l


I I I I I


I I I


1 0.1 1.0
 D1 D4 milss)


Figure 4.19 Relationship Between E2 and Di D4 for t, = 1.0 in.


100


E2
(ksi)


1L
0.0


I I I I


I I r r I


I I 1 I