Radius deviation scale: 0.2 in. 



I H 



4 mm 



i = 0.4 

 p = psi 



Figure B-5. Initial cross-section shape (superimposed to show relative 

 changes in wall thickness and flat spots) for specimen 2-3, 

 showing radius deviations of inner and outer wall surfaces 

 at psi and i, = 0.4 (50 inches from bottom). 



52 



