1,000 



100 



w 

























































































































































































































1 



























'L. 





























1 





























k 





























I 





























1 





























1 





























1 

















c 



) M = 0.1 



: M = 0.5 - 



] M = 1.0 

 7 M = 2.0 







/ 



\ 

















[ 







n ' 



\ 

















I 



^ M = 



5.0 







/ 



f] 



V 

























1 



V 



Vl\ 























i 



// 



f 



\v 





^, 



















/ 



// 



y 



/V 



^\N 



rs^ 



















/ 



'/; 



7 



/ 





In^ 



















// 



'// 



/ 



* 



Xj 



















i 



w 



/ 



/ 







^^! 









J 





^^ 





J 



^^ 



/ > 



/ 















t 



k 





N 





^ 



i^ 



r 











( 



1 



'i 





^ 



^ 



















0.27T 0.477 0.677 0.877 1.077 1.27T 



Nondimensional Frequency, Cc)' = \ — j — ' 



Figure 18. Variation of normalized maximum dynamic stress, U^!„„s, L with 

 » / ' I max I' 



nondimensional frequency, to', for /3 = 0.70 over the range 

 TT/IO ^ co' s 1.4it for values of ju as indicated. 

 40 



