Energy Dissipation

[jvahedi_79]

Hi
How could I compare plastic dissipated energy in beams and columns in a frame?


Best regards
Vahedi

[silvia]

you have to do in the postprocessing -- integrate the hysteretic energy of each.

[alimamodi@hotmail.com]

And how do I record the hysteretic energy of each element?
Thank you Silvia,
Alice

[Wrak]

Hello, i would like to awake the topic.

Can someone make a brief explanation of how to find energy dissapation?

Is there an example that records hysteric energy? How to do it?

Having trouble trying to record deformation of a member, i am not sure what type of deformation(which dof?) i should record, and which point (or points, or just end nodes?) of a member should be checked.

Thanks

[skamalzare]

Hi,

You need to record the stress and strain of you material in your concerned element. Then you can compute the dissipated energy as the area enclosed by shear stress - shear strain curve. Simply perform a trapezoidal integration for shear stress-strain curve.

Bests,
Soheil