■^x 



S E 



D 



COMPUTED FROM EXPERIMENTAL POINTS 



^ (^x)membrane =^'/') 

 D (<7 ) -- (1/2) 



^ '^^ BENDING 



K) „-(<'.) 



.^ X inner 



OUTER . 



^^^NNER-^'^^^ 



THEORETICAL (REF.8) 



-60 























(a ] 



^ X/ BENDING 









^ 



--- 



---T:r 





C 





D 



^^ 



u 



















y^ 































































{(7 ) 



^ x'membr/s 



NE 

















A 





A 





A 





^ 





A 























x/i 



Figure 25 — Axial Membrane and Bending Stresses at tiie Minor Axis 



29 



