642 



PIPPARD AND CHITTY ON EXPERIMENTS ON THE 



No. 3. The curve shows the increase in energy-absorbing capacity of that 

 cylinder compared with the substantially end-stiffened cylinder No. 11. 



Tests on Stiffening Kings. 



Tests were made on a single ring used for stiffening the standard 

 cylinders and also on such a ring with a 2-inch-wide strip of the shell 



Fig. 43. 



I 



No 3 (estimated; 

 Reloaded to obtain crack, 



*No. 3 



/ (Standard cylinder loaded between rlbj) 



No. 118 (crack obtained) I \ I I 



O v% No. 2 (cylinder wtihout ends but with 



M 



'q r<o. i (cylln 

 / complete let of rlbi) 



T 



No 1B|(Stand»rd cylinder loaded between ribs) 



No 06^ *f* 



(uNo OA) od^ No, 11 A (cylinder with heavily reinforced 

 / ends loaded between ribs , track obtained ) 



/ No IB 



No 1A (standard cylinder loaded over rtb; crack obtained) 



I I I I I 



No. OA ( cylinder without ends and only three central rlbs^ 



J L 



|.g 1-0 3-0 40 io t-» 



depth of dent (after removing load) . inches 

 Eneroy Absobbed in Static Tests on Laege Cylinders. 



spot-welded in position. The latter was cut from an undamaged section 

 near one end of a cylinder after the main test had been made. 



The conditions of test were as nearly those of the cylinders as was 

 practicable. In the case of the single ring, support was given to one-half 

 of it by a three-ply cradle and a similar cradle of heavier construction was 

 •ised for the ring with its attached shell. Those cradles represented the 

 support given by the sand bed. 



