7 Replies Latest reply on Mar 12, 2013 4:07 AM by Michael Maz

Elastic deformation percentage when load is removed

Michael Maz Feb 15, 2013 4:06 AM

Hi guys, I have a load (assume) 50kg on a box section 50mm x 50mm x 3mm, 1060 Alloy (aluminium), fixed at both ends. how do I work out the value of elastic deformation on the material when the load is removed. Without going past the elastic limit? solidworks or hand calculations welcome. So to recap a load is applied, the material deforms but when the load is removed the material will not go back to its original limit, thats the value I wish to find out.

I can't find the option in simulation to find this out.

Re: Elastic deformation percentage when load is removed

Anthony Botting Feb 15, 2013 10:12 AM (in response to Michael Maz)

Hi Michael: You will need to conduct a "plastic" deformation to find out the "permanent set" after removal of load, using the nonlinear module of Sim. There are some tutorials on that particular simulation built-in to the software. I have only seen the term "elastic" (in this context) referenced to the structure returning to (or "spring back" to) its original position after the load is removed - i.e., it's no longer all-elastic phenomena if the structure does not fully return to its initial position. Hope that helps. -Tony
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- Re: Elastic deformation percentage when load is removed
  
  Michael Maz Feb 25, 2013 3:11 AM (in response to Anthony Botting)
  
  Does this require the full version of Sim and not Sim Express?
  
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  - Re: Elastic deformation percentage when load is removed
    
    Jerry Steiger Mar 5, 2013 9:34 PM (in response to Michael Maz)
    
    Michael,
    
    Yes, non-linear analysis is not part of the Express package.
    
    Jerry S.
    
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- Re: Elastic deformation percentage when load is removed
  
  Michael Maz Mar 11, 2013 7:08 PM (in response to Anthony Botting)
  
  I have had look, can you suggest which tutorial I should use for this as there are plenty?
  
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- Re: Elastic deformation percentage when load is removed
  
  Michael Maz Mar 12, 2013 4:07 AM (in response to Anthony Botting)
  
  I saw your previous post, thanks.
  
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Re: Elastic deformation percentage when load is removed

Ron Majewski Mar 6, 2013 4:43 PM (in response to Michael Maz)

Michael,

By definition the amount of permanent deformation below the elastic limit is always zero.
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- Re: Elastic deformation percentage when load is removed
  
  Michael Maz Mar 7, 2013 2:41 AM (in response to Ron Majewski)
  
  I don't think this is what I'm after but thanks
  
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