TABLE 1 



Comparison of Experimental 

 and Theoretical Strain Sensitivities'* at Midbay 



Location 



Theoretical 



Average PJ-1S 



Average PJ-1L 



Circumferential 

 Inside 

 Outside 



0.56 

 0.50 



0.58 

 0.49 



0.50 



Longitudinal 

 Inside 

 Outside 



0.15 

 0.34 



0.16 

 0.34 



t 

 0.38 



"Strain sensitivities in M-in/in/psi. 



"Theory of Salerno and Pulos. 



t 

 Bay 2 1/2 only. 



TABLE 2 

 Ratios of Theoretical Collapse Pressures to Experimental Collapse Pressures 



Theory of Collapse 



Ratio of Theoretical to Experimental 

 Collapse Pressure 



Model PJ-1S 



Model PJ-1L 



Model PJ-2 



4 

 Modified Bryant 



(n = 2) 



3.13 



2.54 



3.37 



3 

 Inelastic general instability 



(n = 2) 



0.93 



0.98 



1.02 



Q 



Reynolds' asymmetric elastic 

 shell buckling 



11.7 



12.3 



— 



9 

 Lunchick's axisymmetric 



elastic shell buckling 



13.5 



14.1 



-- 



-, , . . 8, 10 

 Reynolds' asymmetric 



inelastic shell buckling 



>1.2 



>1.2 



~ 



Lunchick's axisymmetric ' 

 inelastic shell buckling 



>1.2 



>1.2 





20 



