1. Limited time only! Sign up for a free 30min personal 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!

Energy required to bend an elastic rod

  1. Feb 1, 2010 #1
    Thinking in terms of the conservation of energy, it seems to make sense that if you took a relatively elastic rod with hooks on either end, so that it could be bent all the way around and made to hook to itself (and make a loop), that the energy required to bend it into a closed loop would be put into the rod. So essentially the work done in bending the rod into a loop would be found in the rod after the act of bending it into a loop (and hooking it to itself) was over? And that same energy would be released when the loop was unhooked and allowed to return to its natural straight length again?

    Does anyone know what formula one would use to determine the energy required to bend a rod of a given elasticity into a loop? Of course, keeping it as a loop of course is another question entirely that I'm not as concerned with.

    Thanks for any help or guidance.
  2. jcsd
  3. Feb 2, 2010 #2


    User Avatar

    This thing is similar to a common leaf spring.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Energy required to bend an elastic rod