1,000 



„ 100 





































































































































(■^ 































































































































(; 



) M = 

 3 M = 

 J M = 



1 













































































E 



1.0 











1 















/ 



^0 











Y 





























1 



























\ 



1 



























1 



\ 



























1 



^ 



, 

























//y i 



I K 



>s> 

























W / 



2 



\ ^^ 

























f / 





\\ 



I 























7 / 





N 



K. 























/ 







N 





















w 











^^i 

















A 



V 

























/ 



f/ 















c 



^^ 



^ 



^ 



^ 



y 



^ 

















0.2W 0.47T 0.67T 0.877 1.077 1.277 



Nondimensional Frequency, i^' = \ — J — ) 



Figure 21. Variation of normalized maximum dynamic stress, I^^q^ ' 

 nondimensional frequency, co', for j3 = 5.00 over the range 

 77/10 ^ O)' ^ 1.4'n' for values of \i as indicated. 



43 



/ith 



