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Stress/Strain in towing bar

  1. Jan 12, 2016 #1
    1. The problem statement, all variables and given/known data
    Towing bar diameter = 15mm
    Max car weight = 3000kg
    length of bar = 2.5m

    trying to calculate the stress in the bar

    and the strain if stretched by 0.2 %

    2. Relevant equations

    Stress=Force/Area



    3. The attempt at a solution

    Area=(pie)x r(squared)

    r=diameter/2
    r=7.5
    area=(pie) x 7.5mm(squared)
     
  2. jcsd
  3. Jan 13, 2016 #2

    billy_joule

    User Avatar
    Science Advisor

    What is the definition of strain?
    How is stress and strain related?
     
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