Hello.
We are simulating this kind of experiment: The bi-phasic sample is initially pre-compressed, then we give enough time to the sample to relax the stress and finally we apply a cyclic compression at a certain frequency.
Since we need the contact interface between the sample and the piston to:
a) allow fluids to flow through the interface
b) don't pull the sample during the positive slope movement of each cycle
it seems like a good solution would be to model the piston with two parts: a rigid body (that i can make move by defining the displacement at each step) connected with a rigid contact to a flat plate (with a very high E modulus to be considered not deformable) which is connected to the sample through a biphasic contact.
So, is this a good approach for modelling this experiment?
If this is a good approach, can you please help me to understand all the 'properties' we have to set in the biphasic contact?
Thank you
We are simulating this kind of experiment: The bi-phasic sample is initially pre-compressed, then we give enough time to the sample to relax the stress and finally we apply a cyclic compression at a certain frequency.
Since we need the contact interface between the sample and the piston to:
a) allow fluids to flow through the interface
b) don't pull the sample during the positive slope movement of each cycle
it seems like a good solution would be to model the piston with two parts: a rigid body (that i can make move by defining the displacement at each step) connected with a rigid contact to a flat plate (with a very high E modulus to be considered not deformable) which is connected to the sample through a biphasic contact.
So, is this a good approach for modelling this experiment?
If this is a good approach, can you please help me to understand all the 'properties' we have to set in the biphasic contact?
Thank you
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