How to model analytical rigid surfaces
How to model analytical rigid surfaces
(OP)
Hi,
I want to run a simulation of a composite material consisting of fibers and Matrix. The top surface of the model has to be rigid in order to apply load. I would like to model a rigid plate.I am planning to use analytical rigid surface approach. I have never used analytical rigid bodies before, do I have to create a plate with 3D extrusion shell under analytical rigid profile in the part module and then later on assemble it with the model in the assembly module? When do I apply tie constraints? What about meshing of the rigid body?
Thank you.
I want to run a simulation of a composite material consisting of fibers and Matrix. The top surface of the model has to be rigid in order to apply load. I would like to model a rigid plate.I am planning to use analytical rigid surface approach. I have never used analytical rigid bodies before, do I have to create a plate with 3D extrusion shell under analytical rigid profile in the part module and then later on assemble it with the model in the assembly module? When do I apply tie constraints? What about meshing of the rigid body?
Thank you.





RE: How to model analytical rigid surfaces
RE: How to model analytical rigid surfaces
RE: How to model analytical rigid surfaces
For each rigid surface you need to define a single reference point which can be used for applying loads/displacements.
Typically the rigid parts interacts with other parts via contact interactions.
RE: How to model analytical rigid surfaces
Correct me if I am wrong.
Thank you.
RE: How to model analytical rigid surfaces
So, apply a fixed displacement b.c. in the direction of the force, with other displacements set to zero.
One run will tell you the resultant force for an aribtrary displacement. Scale the displacement appropriately to get the force you want. Two runs, done.
Alternatively, go through all the trouble of meshing a seperate body, and then set the stiffness for those materials to an artificially high value. Force the solver to give you all of the stress and strain info. for the rigid body, which you can then ignore. But your CPU will hate you...
RE: How to model analytical rigid surfaces
Tata