Meshing general body
Hi all,
I created a general body( 3D plate with a cylindrical hole inside) with iDiana but when it came to MESHING GENERATE it gives W0188: definition of B3(name of body) is invalid. I did try to follow the manuals but couldn't find a solution to the problem.
Note: I created general body by cutting a cavity(cylinder) from a plate. Maybe the problem in this way. I want to try to create a surface with a hole and then sweep it. I'll write what happens.
Thankx in advance for any help.
Aldar
Politecnico di Milano
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Holes may not intersect or touch the outer shell of the general body. You need to change the outer shell to incorporate the hole before you can generate the general body.
It sounds like a sweep of a 2D surface (as you already mentioned) will be easier to use in this case.
Sweeping 2D surface was much easier.
Another question, how to see what is the current element type after meshing in iDiana?
Use the LABEL MESH TYPES command
I assume you want to see if you have assigned the element types correctly to your model. In iDIANA, select or type the following commands:
VIEW HIDDEN SHADE
VIEW OPTIONS COLOUR TYPES
VIEW MESH
iDIANA will show the mesh with the different element types in different colours.
Hello again.
Now i have another problem: i modelled the plate, defined properties, meshed, and defined the boundary constraints and loads. The picture: http://picasaweb.google.com/lh/photo/rSd8aLheAXUeVoPU1733cD34eErjVdPnpWl... . The loading is on the perimeter of the hole. But during analysis i get the warning message "Multiple deformation of nodes n1 n2 etc". I tried to load viceversa,i.e load on supports and support on the perimeter, but then while writing diana file( Utility>write>diana) i get the message:" Nodes of loads displace not found, load case 1 skipped." I tried adding nodes on the points where loads are applied but it didn't help.
I think the problem is the possitions of the points where supports are, there are no nodes. But adding nodes doesn't help. What is the solution to this problem? thank you.
I think i got the solution, i just add the boundary constraints to nodes nearest to the original points.
Another question, in the Material library Manual the smeared crack model is explained for two dimensional problems. Is it extented to 3D smeared crack approach? I mean, the explanation was done for 2d just for simplicity, right?
thanks for the responses.