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Mechanical deformation question

  1. Oct 25, 2016 #1
    I know that i should use the equation:
    δ = NL/AE
    In this case, i looked up E and found it to be 15 KSI.

    Im trying to find the change in distance between points B and C. Therefore, N should be 2 kips (2000 pounds), L is 150 inches, and A in 0.8 inches squared. Plugging this into the equation gives me 25 inches. However, the correct answer is 0.025 inches.

    I think i'm close, but somewhere i'm going wrong. Any help would be great.
  2. jcsd
  3. Oct 25, 2016 #2


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    Science Advisor
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    I think you slipped a few zero's when you looked up the value for E. Check it again. In the future, please post in the homework section . Thanks.
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