Hi. In your latest video on LS-DYNA sensors you went over how to apply SECFORC and other ASCII outputs for simple 3D mesh geometries.
I was wondering how you go about doing this for shell elements that have more complex geometries.
Thank you.
Hi @erick
SECFORC can only be applied to solids. The easiest method to get for from shells would be either RCFORC or Contact_force_transducer. The force transducer is the same as RCFORC, but you can isolate specific regions to output the force from.
so if you have a contact with 4 parts, you can define a force transducer between 2 of those parts so you can isolate the force transmitted between them instead of all 4. You can also do this with segment sets.
There are some other ways like NODFORC which outputs the force at a specific node. Let me know if these don’t help with what you are trying to do.
Thank you, you are always very helpful. I still have another question: How would you go about implementing NCFORC?
As well as RCFORC, NODFORC, and Contact_force_transducer
With the exception of the force transducer, I believe this was all covered here:
https://feassistant.com/forums/ls-dyna/database-functionality/
The force transducer is used to isolate the contact force between a specific region of a contact. So if you have a simple simulation then you probably don't need to worry about using it. To implement it, you would just use the same detailed as the current contact in the model but isolate whatever entities you want force from. If you have a part to part contact then make the force transducer part to part. If it is a segment set to seg set contact then make the force transducer segment set.
Here is a good example of what I am talking about with the force transducer.
https://www.dynaexamples.com/intro-by-j.-day/contact/force-transducer