\iu \ <n \M:H PLATEB *i 



It should I* |iiaU < illu r tin- < leftf TJIittliflC 



lHt\\.,ii Han-. aiiglr* or MifT. new. 



To show the im-tlmd i.f applying thi* formula lo 

 web >iui. n.-n* are necessary l.-i th, - ^. 5o br 



examined. 



Tl.- ::in^ unit stm > k -8&80 lh>. 



per?- neb, 



Aft y 4ft ^ 



Tl.r all-.uMhl, unit Htnwl2,(MM) '-12,000 



t 3 



-8420-3580 Ibe. per squan iurh. 



As the actual stress exceeds the allow ah!, the web 

 must be ma.lt- thirkrr <r tin- >tiffrnrr> |lar-.| < lo*er log* 

 or rise both coinlin.-.l. 



If the web be made I" thick 



ige shearing unit stress- --64*50 Ibs. 



per square inch. 



allowal.lr shearing unit stress- 12,000 - 



-12,000-6300-5700 Ibs. per sqtian- inrli. \\-\iic\\ 

 that the \\rh inu-t Ix? further thirkciird or the i*tif! 



If the web be made ft" thick and stinYncrs placed 

 30" apart in the clear the average shearing unit stress 



l ;!; { ;:;?-7380 Ibs. per aquarr inch. 



.: .;<> 



Tin- allowable >ln-aring unit >tress -12,000 -- -jrr- 

 - 12,000 -4420 -7580 Ibs. per sq.in. 



