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Error 1487 - Optristruct

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Hello,

 

I'm trying to run the tutorial on this Youtube video: 

 

 

 

 

When I get to the part where I run Optistruct (+-min 24), I get the following error:

 

 *** ERROR # 1487 *** in the input data:
 Continuation card not allowed.

 

Can anyone help me?

 

Thank you very much!

 

Gonçalo

 

 

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Thank you for you answer Prakash! I can now run the simulation.

 

What I can't get it's the composite failure, strain etc... I have the Global Output Request setup as told on the tutorial.

 

Do you think you can further assist me?

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On 9/19/2017 at 5:28 PM, Guest said:

Hi,

 

Go to loadsteps>> Edit the first load step and remove the continuation line for STRESS and try again.

Sorry I don't know where to remove the continuation line for STRESS

may you show me in a photo?

 

 

thanks

 

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Sorry

I got one more question in the same video(23:20-23:55)

 

 

 

I  do as the video and remove the continuation line for Stress

 

but it didn't show up at Composite Strains and Composite Stress

 

image.thumb.png.3b1e48172c8d2c6350f80b49c371096c.png

 

 

 

 

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HELLO
Can I import my 3D CAD file into Composite analysis directly? My 3D CAD has thickness, but in HyperMesh example, it’s a pure surface. Does that mean I need to make my file a non-thickness CAD?

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hello Hyperman


I've prepared another non-thickness CAD with surface only.

When I pre mesh, I can see the whole surface is meshed, but after I click "return", there's some area lost the mesh

image.thumb.png.766b3bc12d4f51c4b1a45002fc683922.png

image.thumb.png.14a60c4dea1cd900be7ef0cb3f193dd2.png

 

 

 how can i fixed it?  thanks

 

 

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Hi Hyperman,

 

1. Can I set force and SPC on the modal surface like picture below? 
(I find an example at 42:42 in this video,  

image.thumb.png.d39ad6d9e64f34dfeb1a55ce031fe6dc.png

 

 

2. I've already checked the mesh, and it is there. But after I put composite laminate on my model, it's broken like this 

image.thumb.png.f1c59cff58c4682ff8a7ee3591693a08.png

 

 

3. However, I skip this problem and proceed to click "OptiStruct", there are lots of Error#15.
image.thumb.png.7619958b52e524871747498e399e851c.png

 


I'll be really appreciate if you can check my file in the link below
(https://)


Thank you

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Hi,

 

1. Constraints and loads applied on single nodes will cause stress singularity. For more details refer to: 

https://www.comsol.com/blogs/singularities-in-finite-element-models-dealing-with-red-spots/

 

2. and 3. are due to bad mesh. You should remesh the model  using the these tools:

  • Geom>autocleanup to clean up the geometry
  • 2D>automesh>QI  optimize (F12) to mesh using quality criteria
  • 2D>elem cleanup
  • 2D>qualityindex
  • tool>check elems>2D (F10) to check elements

There are more then 4 million elements in the model you shared. Reduce the element count (increase element size), unless you have access to supercomputer to solve this model in a reasonable time.

 

There are some great learning materials from Altair university- Practical Aspects of Finite Element Simulation is a good starting point.

https://altairuniversity.com/free-ebooks-2/

 

Check the following Youtube channels:

Altair University

Altair India Student Contest

ELEATION By Apoorv Bapat

https://altairuniversity.com/wp-content/uploads/2012/04/HM_Geometry_extract.pdf

https://altairuniversity.com/wp-content/uploads/2014/02/HM_Automeshingintro.pdf

https://connect.altair.com/CP/SA/training/self_paced/aero_v13/PDF/chapter4_demonstration.pdf

 

The Like button is an easy way to show appreciation for a post ;)

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getting this error again and again what is error and how to resolve please help

 

Messages for the job:

 

 *** See next message about line 16 from file:
     C:/Users/Desktop/air.fem
  "STRESS(COMPLEX,ALL,CENTER,,,,,"
 
 *** ERROR # 1487 *** in the input data:
 Continuation card not allowed.

 

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