Hi Friends here:
I am using Riks to modelling stability of a concrete prism, and need load in displacement control at certain eccentricity, I did well in concentric loading with a rigid body and a reference point, but once come to eccentric loading, as long as the rigid body was defined, even I assign the displacement at the location that can give the eccentricity, the results is still similar to the case where I apply the displacement at the center of the model, with 0 eccentricity.
Can you give me a hint about how to assign displacement in eccentric way, do you think the rigid body definition causes the issue? Any response is highly appreciated.
Sincerely,
Kyle
Hello Song
your problem can be solved if you replace your rigid body by an elastic deformable part with high Young modulus and mesh it considering the point at which the eccentric load is applied.
best regards
Hi Raafat:
Thanks for your reply, truly appreciate it!
I tried to change the rigid body to a steel plate, deformable, but still the eccentric loaded phenomenon cannot be seen; And the problem is that, I assign 2mm displacement for a 800mm concrete specimen, it only goes down 0.18mm and then showed me the job finished, I use concrete damage plastic to model inelastic performance, can you tell me why this will happen? I assign the final compression / tension strain too small?
Best regards,
Mengli
Hi song
Plese send me cae file and I will check it for you and do possible modification
Regards
thank you so much Mr. Raafat! The CAE is too big to send through emai, I attached it here. and also sent you an email with details of the model.
What a great world to have you in the same research area!
Sincerely,
Mengli
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