1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Column problem help

  1. Aug 16, 2006 #1
    A straight conical column made of steal (original length 1000mm, head diameter 90 mm, ground diameter 190 mm) is loaded by a normal force F = 1450 kN. What is the length under load ?

    for this ,the diameter is changing along the column,should i assume is as hollow and use the hollow formula for the area or any other ways??
  2. jcsd
  3. Aug 16, 2006 #2
    i get (force/E) (1/A(x)) dx = d(strain)

    then i integrate to get (F/E) ln[(pi*d^2)/4] = deformed length - original lengh

    am i correct??
  4. Aug 17, 2006 #3
    When you say normal force, what do you mean? Axial or normal to the member? If it is axial, then yes, you have to integrate.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?