FEA Mesh error

george_mcfarlane
Contributor
Contributor

FEA Mesh error

george_mcfarlane
Contributor
Contributor

Hi Guys,

 

I am trying to perform some FEA on a part I have created for my final year project at uni, but I am getting an error when creating the mesh for the FEA.

 

The error message is "Mesh failed: Face failure..." but I am not sure what this means or how to fix it. Any ideas? I have attached the screen shot of the message and a copy of .ipt if anybody can have a look at it for me?

 

Cheers

 

mesh failure.JPG

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blair
Mentor
Mentor

Why are there so many errors/issues in your model. There are over 50 issues with this model. I would start with "Extrusion7" and create a simpler version of this. Rather than having all the profiles in the sketch. Create the sketch for the two profiles, extrude the shape and then use the Pattern Feature with the circular option to create the remainder of the ribs around the plate.

 

Correct the remainder of the issues the little while circle with the "i" in the centre and the yellow triangle with the "!" in it. If Inventor is having issues with the solid model, the meshing function within the FEA will have similar issues.

 

Running the mesh within Simulation Mechanical, I am seeing issues with the oil-passage hole in both the Inventor model and Simulation Mechanical. Simulation Mech is showing issues with two of the inside ribs junctions.

 

It would be easy within Sim-Mech to delete the surfaces and repair them with new surfaces, unfortunately Inventor doesn't have these tools.


Inventor 2020, In-Cad, Simulation Mechanical

Just insert the picture rather than attaching it as a file
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Delta Tau Chi ΔΤΧ

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Anonymous
Not applicable

I am having the same problem. Is it solved now?

I wander why this error pops out.. (what causes this error)

 

Mengfei

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blair
Mentor
Mentor

Without looking at the model, it could be a number of items. I generally suppress all items not directly related to the analysis.

Look for any items with sharp edges/points. Possibly try deriving the model to a single part and try the derived part.


Inventor 2020, In-Cad, Simulation Mechanical

Just insert the picture rather than attaching it as a file
Did you find this reply helpful ? If so please use the Accept as Solution or Kudos button below.
Delta Tau Chi ΔΤΧ

Anonymous
Not applicable

I will check my parts to see if they are related to the analysis and take a look at the parts with sharp edges.

 

Thank you!

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TheCADWhisperer
Consultant
Consultant

@Anonymous wrote:

I am having the same problem. Is it solved now?

Is what solved now? The problem is with poor modeling technique. Attach your file here and end all doubt.
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Anonymous
Not applicable

here you go

 

assembly is downloaded from my company, so almost of the parts are fixed without constraints.

but it doesn't matter since the stress simulation is the point.

parts/assemblies such as door/side panel/cooler, I have added them and the constraints as well.

 

added parts/assembliesadded parts/assembliesmessing errormessing error

 

 

 

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Anonymous
Not applicable

is the  "Mesh failed: Face failure..." error fixed now.

because I'm having the same error during the meshing.

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Anonymous
Not applicable

Problem solved.

 

I have recreated the problematic part using "sweep" instead of "revolve".

the "mesh failed. Face failure" error is gone. yeppi

 

sweep.PNG

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