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@rb1957: Yup! grid point forces are what im calling freebody forces (GPFORCE output request) @TG_eng: I dont know, and still dont - but Im glad to have found a work around. All the tutorials i found online showed that NX Nastran has this output capability, not sure why MSC doesnt. Seems like NX...

I am using Femap v2301 and MSC Nastran 2019. When I try to do a sol200 optimization, the option for topology seems to be grayed out. Is Femap unable to make a topology input deck for MSC Nastran?

Glue in Nastran are not elements, they are "connections." I think Nastran internally & automatically creates invisible RBE elements that associate a set of nodes in a group of elements, with another set of nodes on another group of elements. Loads and/or moments can then transfer across the...

Anyone know how to request glue forces output for MSC Nastran using Femap? Im having a difficult time finding this. I am modeling the bond between two dissimilar meshes as glue, and trying to figure out the forces/stress in the bond.

Mr Rogers, did you find a good way to do this? Im trying to do this exact same thing: CG acceleration, frequency response analysis. I have heard of the method of using RBE3 or MPC to connect to all the nodes in the system, and then weighing each individual node with the nodal mass. What about...

Yes its the most sucky way. I was looking for a better way given the SET identification in the bulk data.

To make the groups, I would have to type in the element IDs in the set one by one. I was hoping for a more efficient solution.

Sorry I did not respond sooner! for some reason I cant get alerts to responses to my thread posts on this website. I eventually made an excel VBA script and got it to work. Basically I only have a Nastran bulk data file that I want to import into femap. These sets were specifically requested...

Does anyone know the best way to import Nastran SET data, example: SET 1 = 7200001,7200412,7201617 THRU 7201619, 7201623 THRU 7201626,7202184 THRU 7202186, 7202188,7202254,7206841 THRU 7206848, 7212651 THRU 7212658,7218824 THRU 7218831, 7224882 THRU 7224889,7224906 THRU...

Thanks guys, skipping the geometry and going straight to elements worked out really well as you can see below. Im sorry I did not respond sooner abt this topic.

Hello femap users, I am trying to associate some nodes that belong to 3D tet elements, to a surface. I am doing this to establish a region for a contact problem. I used these same elements to create the surface, so it should be right on. However for some reason femap keeps telling me, "0 Node(s)...

Blas, you were right! Unfortunately I did not save a version of the model which still contains the geometry so I was not able to check what you said. However I did try and import the geometry into a new blank file and saw exactly as you had described. The icon in the tree was NOT a solid...

TG you are absolutely correct on everything youve said, and I think I my first post was misleading to rb1957. My issue was not related to the hole, sorry for the confusion. It was indeed the open cross section (not water tight per TG). I also dont know why I got an open face like this, Ive...

No, there were no errors. I repeated this process a few times and still the same result. However I did figure out how to fix it! I created a boundary surface from the edge curves, converted that to an actual surface, and then performed non-manifold add and it became a proper solid to tet mesh.

Dear Femap users, Recently I tried to slice a solid and make a tet-mesh out of the geometry, but for some reason femap did not create a face at the plane of the slice. This makes the solid not enclosed and I am unable to create a tet mesh. Anyone know what went wrong, and how to fix this?

Hello FEMAP users, I am using software v11.4.1 I have a question regarding criteria view in post processing. I really like the criteria option within criteria view, where you can choose to display or hide results that are above/below a certain value (1st picture). My question is this, for...

Sorry but what is an LPS?

ThomasH, that was absolutely it! I didnt even know about this feature in femap. I had been working with the model all this time since the original post, without being able to see the loads that I am applying- what a pain. Thanks alot.

Hello everyone. For some reason FEMAP doesnt want to refresh its display of loads & constraints. When i activate any loads/constraints set, the display is stuck on one particular set. Even if I create a new load set, I am not able to see it because the model only displays that one load set. I...