Hello together,
I am working on concrete direct shear Tests, where i apply loadsteps of a prescribed Deformation (left deformation). Since i can only apply a Deformation with a support inplace i have the Question, if i can model this somehow while exluding Tension stress in the supports/Elements near the supports. Because i Always get Tension stresses in the upper part of my displaced topside. This makes sense if i have fully connected Supports, but i only want to apply a compression deformation and therefore in my understanding, there should be (in reality) no tension in the SXX direction, if i don’t have any connected supports. I already tried a No Connection IF between the shape and the supports, but that didn’t work. I Played around with Boundary Elements but that didn’t help either.
Do you have any suggestions to negate Tension stresses/forces ?
best regards Fabian Brinnel
Hi Fabian Brinnel
I think you can employ a zero-length tensionless spring between the model node and the support. The material property of the spring must be rigid in compression (an elastic material with a large stiffness) but with a very small stiffness in tension.
Good luck
I hope what Ab van den Bos Diana Fea said should work. If you are struggling, let me know, I have a different idea.
Hi
You can use a nonlinear interface element between the two lines and select no tension bedding in the nonlinear properties
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