SPRINGS 



147 



CANTILEVER SPRINGS~ni 



Load-deflection Ratio for Given Spring Dimensions 



(Required thickness for given maximum deflection and fiber stress can be determined 

 by use of Charts I and II, pages 145 and 146) 



0.5 



lo 0.6 ^i — 06 

 -5 08 ^ E; 08 



-r w ^ ^ 1.0 'S' 



2.0 -z f— 2,0 



0.5 



Deflections based on minimum of values of E, 

 modulus of elasticity, 

 For brass Emin.= I3j000,000 

 For phos. bronze = 14, OOQOOO 



ooo o 



— " O O" Cj o" Cj 



Values of h and L cut by one straight- 

 edge tA-B), with values of wand 



t; cut by perpendicular edge (AC) 



satisfy the load-deflection equation: 

 P wh^E 



D" 4L^ 



Corresponding values of P,Dand 



■K are cut by straight edge (EF) 



llllllMllllMlllllllMlllllllllllllMlllinilll MllllllMlllllllllll ll.llllllllllMllllllllllllllllllll 



CO 1^ "^ Ln "^ 

 o ooo o 



CJ O C) O" C) 



IiimI|iii[ I I [ I I 



Load -Deflection Ra+io f-p:) in Lb. per Sq.ln 



Deflection f D) in Inches 



|IIII|NII||||||||||1I|| 



cJ cs ci ci cjcj 



Brass {^^\n.^ 13x lO^p.s.i.) 

 Phos. bronze fEmin.= I'*' '^ 10 pS-i) 



oo 

 oc> 



Load (P) in Lb. 



rmrp 





o o o o 

 ooo o 



o o 

 o o 

 o o 



Load (P) in Grams 



