Gerard's Expressions: 

 Moderately Long Cylinders 



Long Cylinders 



T7 = 



1 



-e^ 





1 



.j,2 







1 



,, i 



e 







_1 



- 1^2 





s / t \ \ 



4E„ 



1.0 



1 1 1 1 



1 





T^=^^:-\. 







1 ^\^^ ^^^^^ y Gerard, concrete 



\ >v\^ ^\^y^ '■'^'^ report 





\ xx 



0.8 



\ \. \ 





\ \ N^^ \ ^_^ Gerard, concrete 







\ \ ^'^ cylinders (data 

 \ \ v. from Ref 14) 



pr 



o 



S. 0.6 



c 



\ design >^\. \ >^ 







r, curve \ \ \ 



^ 



\ ^\ 





u 



\ \ 





J 0.4 



Ref8 \. \ 





0.2 

 



1 1 1 1 





Figure 9. Comparison of various r\ versus a- li ' relationships. 



17 



