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error to run optistruct

Altair Forum User

Hi all,

I'm running Optistruct on a aluminum part. But I always got this error and can't find any clue.

I had used tool-> model check but all passed.

It would be very appreciated if anyone could help... Thank you.

--------------------------------------------------------------------------------------------------------------------------------

Messages for the job:

*** See next message about line 80686 from file:
C:/Users/edison/Desktop/LF/LF/DD_YJK/Geely_EMA/Fred_20180131/HM/Front_caliper stiffness/Front_caliper ear stiffness_20180223_try_bracket.fem
(this is continuation line 1 of CTETRA,909823 bulk data)
'+ 1194909 1201509 1194910 1194882'

*** ERROR # 1026 *** in the input data:
Duplicate ID's not allowed.
---------------------------------------------------------------------------------------------------------------------------

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Accepted answers

All comments

QuyNguyenDai

Try to renumber nodes and elements: Tool => renumber

renumber1.png.97737fbcc533543f4f1b347cb8770716.png

renumber2.png.40f5a58eb229f74d784c06a2d8e4df4a.png

Altair Forum User

I actually did renumber all elems and nodes. But the error still exist.

It seems the number is changed as below. Do you have any idea?

Thanks for your comment.

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Messages for the job:

*** See next message about line 80686 from file:
C:/Users/edison/Desktop/LF/LF/DD_YJK/Geely_EMA/Fred_20180131/HM/Front_caliper stiffness/Front_caliper ear stiffness_20180223_try_bracket.fem
(this is continuation line 1 of CTETRA,25209 bulk data)
'+ 24114 35729 24113 24141'

*** ERROR # 1026 *** in the input data:
Duplicate ID's not allowed.

tinh

Did you check quality of the tetras?

Try import the ...bracket.fem and verify it then export it again

Sometimes fe output template does not work properly. If possible please share hm file {delete most of elems if they are confidential, leave a few with error}

Altair Forum User

Thanks tinh,

Although the tetras are not perfect but I think other model works.

I have imported and exported fem but doesn't work still.

I attached a simplified .hm, which includes the model. It would be appreciated if you could help to take a look it...

Thank you again,

Edison

Unable to find an attachment - read this blog

QuyNguyenDai

You have a very bad element:

bad_elem_909823.png.b88bb2dbf97e2553ed51f1435112f5d5.png

Check Element ID: 909823

tinh

9 hours ago, Q.Nguyen-Dai said:

You have a very bad element:

Check Element ID: 909823

Sometimes thinking is just thinking, he (Edison) should've been sure.

Altair Forum User

Yes! Thank you all. Lesson learned...

Thanks again,

Edison

Amith Anoop Kumar

Did you check quality of the tetras?

Try import the ...bracket.fem and verify it then export it again

Sometimes fe output template does not work properly. If possible please share hm file {delete most of elems if they are confidential, leave a few with error}

I am also facing the same issue Sir, I tried both the option you said sir . But still didnt get it error free. Also my mesh is a 1d mesh so I think no chance for any quality issues. If you could please solve it would be great

ROLL_CAGE_FINAL.hm

Adriano_Koga

I am also facing the same issue Sir, I tried both the option you said sir . But still didnt get it error free. Also my mesh is a 1d mesh so I think no chance for any quality issues. If you could please solve it would be great

https://community.altair.com/community?id=community_question&sys_id=6cd0cfb21bdb2c90507ca6442a4bcb70&view_source=searchResult