Hello everyone,
Please advise on the following topic.
I've used an automatic_node_to_surface contact for deformable beam elements and a rigid surface. I set both flags of SPR and MPR to 1 in the contact cards. However, in the ASCII file, when I load the ncforc, it only brings the nodes of the master! Since, I need the nodal force data of the slave, what I should do!
Thanks in advance!
Hello everyone,
Please advise on the following topic.
I've used an automatic_node_to_surface contact for deformable beam elements and a rigid surface. I set both flags of SPR and MPR to 1 in the contact cards. However, in the ASCII file, when I load the ncforc, it only brings the nodes of the master! Since, I need the nodal force data of the slave, what I should do!
Thanks in advance!
The LS-DYNA support page is written: "The ASCII output file NCFORC reports contact forces at each node. The command *DATABASE_NCFORC is required in the input deck to produce such a file. Further, one or more contact print flags must be set (see SPR and MPR on Card 1 of *CONTACT)"
I cannot find DATABASE_NCFORC. There is just one command "DATABASE_NCFORC_FILTER"!
Any advice is appreciated!
Hello everyone,
Please advise on the following topic.
I've used an automatic_node_to_surface contact for deformable beam elements and a rigid surface. I set both flags of SPR and MPR to 1 in the contact cards. However, in the ASCII file, when I load the ncforc, it only brings the nodes of the master! Since, I need the nodal force data of the slave, what I should do!
Thanks in advance!
Does anyone have any idea about this post! Thanks;
@ana I've seen this too but, honestly, I'm not sure I ever resolved it. Is the rigid surface or beam the slave side?
@negativevolume Thanks for the reply. The slave side is the beam, and the master side is the rigid surface!
Can you try switching master/slave entities in the contact card and, assuming contact still works, see what you get? Not a great suggestion, I know but I am curious.
Also, can you try writing results to binary output instead?
I can't remember various contact database cards off the top of my head but I think there are one or two other options in addition to NCFORC that might also work.
Finally, and I haven't thought this one through carefully so I may be off, I wonder if add a skin layer of shells (with a very compliant material) will do the trick to extract nodal forces.
@icebreakersours Thank you so much for the reply. That didn't work. However, I tried other contact types.