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Stress, Strain and The Young Modulous

 
 
Moddaw
 
Reply Wed 10 Oct, 2012 08:50 am
Calculate the tensile stress in a suspension bridge supporting cable of diameterr of 50mm, which pulls up on the roadway with a force of 15KN...?

The greatest tensile stress which steel of a particular sort can withstand without breaking is about 10^9Nm^-2. a wire of cross-sectional area 0.01mm^2 is made of this steel. what is the greatest force that it can withstand?
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Type: Question • Score: 1 • Views: 976 • Replies: 2
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timur
 
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Reply Wed 10 Oct, 2012 09:25 am
@Moddaw,
http://imageshack.us/a/img819/176/stressr.jpg


raprap
 
  1  
Reply Wed 10 Oct, 2012 08:30 pm
@timur,
A=3.14159*(50/2/1000)^2=0.0019 m^2

Allowable force=2E+9 nt/m^2*A m^2=1963knt=2000 knt

Rap
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