Optimizing Mesh Uniformity and Connectivity in ABAQUS FE Package

[Sadeq]

I am using FE package called ABAQUS, however my question is general, i read that the mesh should be uniform,so does that mean it should be square, also if i have different parts affect each other, does the nodes on one part need be connected to the other part at the edges(to achieve continuous lines).

I wish if anyone could make this points clear please.

Thank you

 

[jfgobin]

Hello Sadeq,

I don't think your mesh has to be uniform: I think that certain packages and softwares actually create more elements near a "point of interest". However, your program has to take into account the non uniformity.

Off of the top of my head, the mesh elements can be any shape.

J.

 

[SteamKing]

In order to get good results with FE, for example, your triangular elements should not be long and narrow like a dart. Ideally, triangular elements should be equilateral or like a 45-45-90 right triangle. Similarly, for rectangular elements, try to keep the ratio of the height to the width as close to one as possible.

A finer mesh is used in those regions where it is desired to obtain a relatively high accuracy in the results.

 

[Sadeq]

thank you

 

[Sadeq]

And for the second question, if i have two parts influence each other,do the nodes be connected(i mean continuous line path through the two parts) which is difficult to be done?please explain this point

 

[SteamKing]

It's not clear what you mean. Perhaps an illustration?