146 



HANDBOOK OF MECHANICAL DESIGN 



CANTILEVER SPRINGS II 

 Maximum Fiber Stress for Given Loads 



o OOo 



— CiciC' 



lihlilihl 



o o 



in ^ 

 O' CJ 



d odd d d d d 

 '''■■' lllllllll I liiiiliiiili I M Iniihi I I 



Spring Wicl+h(w)in Inches 



o 



C3> - 



C I 



1 mi i i iii 1 1 [||mm iii | 1 1 | M| || | | ' i ii|iiii| ' iii |ini| iiii| | 



-0.10 



^0.20 



^030 

 j-0.40 



bo.50 



-0.60 

 -OVO L 

 -0.80 

 ^ 1.0 



• 2.0 



E-3.0 



h^.O 

 SO 



— 6.0 



— 7.0 



— ao 



Values of Land h cut by one 

 straight-edge fA-B) with values 



of w and "5 cut by a perpendicu- 

 lar straight-edge (AC) satisfy the 



fiber stress equation 5 = £]^ 

 ^ P wh^ 



Corresponding values of ■□,? 



and 5 are cut by any straight- 

 edge (EF) 



t^ 21 



CD 



28 



26 



25 



S 24 



8^23 



^22 



21 



20 



18 



16 



14 



12 



'|lll|l| Nli|illl|llll|llll|IMI| I {|||{|{|{ 



o ooooo 

 in u> r-too-o 



Ratio 



Fiber Stress 

 Load 



p ) in Thousands of Lb. per Sq.ln. per Lb. Load 



o o 000 o 

 o o 000 o 



-0.02 



^0.03 



-0.04 



•0.05 

 -0.06 

 -0.07 

 -0.08 

 -0.09 

 -QIO 



Load (P) in Lb. 



Ooduj ^f^ 



o'^ do d 



im 



m 



000 CiOCi 



MMffp 



000 000 00 o 

 o o o 000 00 o 



O O O ooOiX* -^ro CN 



Load (P)in Grams 



— oOr*«£>lO 



Iniilii.illllllllllliiiiliiiilinilMnli.iilllllllllll 5 



Max. Fiber St ress(S) in Thousands of Lb per Sq.ln. 



