456 BELL SYSTEM TECHNICAL JOURNAL 



and' 



Ks = lK(yoa,s-Y (24) 



The / is placed in front of K in eq. (24) because //o and K appear in the 

 thin beam solutions only in the combination tloK. Using tK instead of K 

 allows us to use 7o , the actual value of the current in the solid beam in the 



-1/2 



70 /, , i8. 



solutions instead of tlo , the equivalent current. Values of 0« - ( 1 + 



^e \ To' 



arnd Ks — . ( 1 -| — \) are plotted vs. 70a inFigs. A6.4 and A6.5 for different 



To \ ToV 

 values of b/a and for values of t and s taken at t« = To • All the solutions 

 obtained for the hollow beam will be valid for the solid beam if Qs and A'« 

 are substituted for Q and K. 



