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Internal stress due to tube bending

  1. May 7, 2005 #1
    i have a circular tube of diameter 20mm,thickness 1mm and length 500 metres

    i bend the tube into a radius of 50mm. obviously the tube has entered the plastic stage. But what would have happened to the material properties.

    hOW CAN I CALCULATE THE CHANGE IN MATERIAL PROPERTIES. THE MATERIAL
    OF THE TUBE IS STEEL
     
  2. jcsd
  3. May 7, 2005 #2

    PerennialII

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    Account for the nonlinearities, both types, which were discussed in that other thread. As additional material property information you will need some form of a true stress-strain curve for the tube material in order to accurately compute what is going on in the plastic region. I'd suggest doing a simple FE - analysis of the bending and extracting the amount of strain hardening from the results.
     
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