8 



HANDBOOK OF MECHANICAL DESIGN 



F-2 



o 



c 



1^ 1 



0.9 

 rO.8 



-0.7 

 ■0.5 



■0.5 

 •0.4" 



-0.3 

 -0.25 



-0.2 

 -0.15 



■0.1 



AREAS OF CIRCULAR SEGMENTS 



-7000 

 ■ 5,000 



- 3,000 



- 2,000 



- 1,000 



■500 



•300 

 -200 



~— 100 



E-30 

 i-20 



10 



A= 0.01745 R^arc cos -~ - (R-H)Vh('2R-H) 

 Note: The ang/e is expressed in degrees 



<. 



hO.5 



-0.3 

 -0.2 



^0.1 : 



h 0.05 



■ 0.03 

 •=-0.02 



Dra'w a straight line through the two kno'wn points. The answer will be found 

 at the intersection of this line with the third scale. 



Example: For a 10-in. radius and H = 4.0 in., H/R = 0.40 in. Area A = 46 

 sq. in. 



-5 



=-3 

 '-2 



-50 

 -40 



-30 

 -20 



10 



-7 



=-5 



-2 



