How should I create a system in ABAQUS that consists of rigid parts (parts must be connected with pins like truss systems)?
I use some techniques but I want to know other possible techniques..
Direct or tricky methods I can accept.. For instance material usage with very high elasticity, or manipulated Poisson's ratio. I can use game engine for this but I want to use Abaqus?
Dear prof.Gokhan altintas,
Ater you make your parts, you must import them in assembly module as independent parts, now by options in this module you will able to locate each of them in the right place, after all of that, you should use ties in interaction module to connect shared points between separated parts.
I hope that can help.
Hello,
Well, in an Abaqus/Standard or Abaqus/Explicit model a new part's type can be set to one of the following ((quoted from MIT's ABAQUS education web page)):
Deformable
Any arbitrarily shaped axisymmetric, two-dimensional, or three-dimensional part that you can create or import can be specified as a deformable part. A deformable part represents a part that can deform under load; the load can be mechanical, thermal, or electrical. By default, Abaqus/CAE creates parts that are deformable.
Discrete rigid
A discrete rigid part is similar to a deformable part in that it can be any arbitrary shape. However, a discrete rigid part is assumed to be rigid and is used in contact analyses to model bodies that cannot deform.
Analytical rigid
An analytical rigid part is similar to a discrete rigid part in that it is used to represent a rigid surface in a contact analysis. However, the shape of an analytical rigid part is not arbitrary and must be formed from a set of sketched lines, arcs, and parabolas.
Ref: https://abaqus-docs.mit.edu/.
It is noteworthy that you can create a deformable part and put a reference point on it, then in the interaction module>creat constrint> rigid body, turn that deformable part into a rigid body. This work has many benefits such as simplicity in the assembly of deformable and rigid parts, define contacts, and the ability to the analysis of thermal gradients in the rigid parts.
Thank you very much for your valuable answers. Dear Mojtaba Abdolkhani, the method you mentioned, yes it meets the solution of the problem, but I will use it as a last resort and keep it on the side of my mind in reserve. Because I'm looking for an approach that I can do quickly, just like with truss elements. Because I will create the model by writing scripts, not CAE. The approach you mentioned is in my mind and thank you very much in reserve. Dear H. Ghesmati-Kucheki, although I know the general information you mentioned, I can make a transformation as you mentioned in the last paragraph. I especially think of protecting hinge connections and changing the element type. Thank you so much.
You're welcome,
Good to know that, well you can do what I said in abaqus Cae and open the .log file to see how the relevant commands will be in python script and parameterize it for your problem.
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