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How to mesh FEM using Patran

How to mesh FEM using Patran

How to mesh FEM using Patran

(OP)
Hi everyone!
I am newbie to MSC Patran and wanted use Patran for meshing purpose. I have an irregular 2-D region(of say 6 linear edges) and two important locations(points) inside it. I wanted to mesh the surface with Quad elements all region  but with fine-mesh near those two points. Can someone give some steps to follow:

Your help will greatly acknowledged !

sdharn

RE: How to mesh FEM using Patran

Create>curve>chain
Create>surface>trimmed
Associate>point>surface
Create Mesh Surface>use paver sub-options

gwolf
 

RE: How to mesh FEM using Patran

(OP)
Thanks a lot gwolf2.it really worked!

RE: How to mesh FEM using Patran

(OP)
gwolf,
Just a quick question, to have finer mesh at the two locations inside the region, do I need to make another 2 surfaces..and mesh them with shorter global length..Is there other ways to specify the paver to apply two types of meshing option in a single Big surface.
thanks in advance

RE: How to mesh FEM using Patran

Because a point can't have divisions there is a limit to what you can achieve with mesh gradation in the paver. Try this:

Put a coarse mesh seed on the surface outer boundary
Specify a much smaller default element size
Use the p-element sub-option on the paver.
Use 'modify mesh smooth' to straighten out the mesh

This will create a graduated mesh from coarse at the boundary to fine at the point. If that is still not good enough then put a small surface around the point and create a central patch and an outer annulus. Trimmed surfaces can have inner and outer boundaries (i.e. holes)

gwolf
 

RE: How to mesh FEM using Patran

(OP)
thanks a lot. I'll try that

RE: How to mesh FEM using Patran

sdharn, maybe you could give gwolf2 a star??

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