L 























\ 



\ 







long 

 -ylinde 



rs 



















\ 























i] 



\ 



s 





















\ 

















Pim^fc = 



1 



0.02 1 

 1 0.04 





k 



\ 















0.06 / / 1 



S 













1 



008 / 

















0.10 



1 















on 















h 



0. 



4 









moderately 

 long cylinders 



/ 





0.16 1 



0.18 





1 





/ 



/ 











1 





/ 



1 







0. 



thick 



20 



/ 





1/ 







c 



ylinders 





/ 





1 



// 



// 





j 



f'^/ / 



j / 



/ / 



' / 





/ / 



h 





/ / / 



'// 







-' 1 



/ / 



' / / 



/ / 







0.02 



0.04 0,06 0.08 



Wall Thickness/Outside Diameter, t/D„ 



0.10 0.12 



Figure 3. Design guide for predicting implosion of concrete cylinder structures. 



