Hi all,
I'm analyzing the weldings in a beam of an earth moving machine. Some parts can be modeled as 2d shell while for some others I needed to create a 3d mesh. In a first tentative a created a 2d mesh for each element and I was able to run the analysis, but I noticed some inaccuracy in proximity of parts that can not be treated as 2d elements. So I improved the mesh treating this parts with 3d elements. Now I'm not able to run the analysis. During solving the log window prints this warning:
*** WARNING # 1955 Static Loadcase 1 has zero static force vector. This typically produces zero solution and zero compliance.
I linked the parts using spot weld connector (RIGID). In order to connect 3d elements with 2d shell I created a shell face upon each 3d element giving them a very thin thickness. I reassigned the nodes for each RBE3 element but this doesn't help me.
I attached the .hm file if someone wants to have a look:
https://www.dropbox.com/s/2v7fu0p4wd1msku/1_SIGMA_MAX_SEZ_4_MIDSURF_and_3D_1.hm?dl=0
Thanks for your support.
