Good morning all
How I can show permanent deformation of a beam without force?
I have use
*Elastic
200000,0.3
*Plastic
900,0
Thank you
Hello,
what do you want? can you explain a bit more?
wbr
Do you mean permanent deformation under self-weight of the structure ? Or prescribed displacement instead of applied force ?
deformation of plasticity?
when in a beam the force exceeds the yield point I will have a residual deformation without load.
If you want to remove the load and check the residual stresses/strains, you can divide the analysis into multiple steps and disable the load in the last one. Or use *Amplitude to control the time variation of the load.
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“when in a beam the force exceeds the yield point I will have a residual deformation without load.”
if i have no load, you’ll have no deformation with statical analysis,
but with exceeding the yield point, force will remain constant or less with deformation!?
you can use with
*EL FILE
PE
for showing equivalent creep strain !?
add a step removing the applied load, the final deformation will be the permanent deformation if yield point was achieved and material has plastic behaviour.
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In addition to what others have said, I think you need at least one more point in the *PLASTIC card to define the slope of the stress-strain curve after yield. Like maybe:
*Plastic
900,0
1000, 0.01
or whatever the material behaves like.
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