Regarding error in Radioss

Altair Forum User

I am new to Hyperworks. Can someone tell me how to solve this?

thank you.

BLOCK FREE FORMAT
WARNING ID : 1114
** WARNING WHILE READING
DESCRIPTION :
THERE IS NO DEFINED PART IN INPUT FILE.

.. STARTER RUNNING ON 1 THREAD
.. CONTROL VARIABLES
ERROR ID : 286
** ERROR IN INPUT CONSISTENCY
DESCRIPTION :
QUAD ARE NOT COMPATIBLE WITH N2D3D=0
.. UNITS SYSTEM
.. MATERIALS
.. NODES
.. 3D SOLID ELEMENTS
.. 2D SOLID ELEMENTS
.. 3D TRIANGULAR SHELL ELEMENTS
** ERROR TRAPPED : REPORT TO LISTING FILE
ERROR ID : 760

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Radioss

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Altair Forum User

Hi,

Error id 760 is a generalized modelling error. We need to review the model file to find the error.

Please update the elements, so that the element types will be updated to RADIOSS element types. For that, go to 2D pane;, select elem types panel. Select 1D, 2D&3D options and select all the elements, click update and try running.

If the issue persist please share the model file so that we can review.

<?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Hi,

Error id 760 is a generalized modelling error. We need to review the model file to find the error.

Please update the elements, so that the element types will be updated to RADIOSS element types. For that, go to 2D pane;, select elem types panel. Select 1D, 2D&3D options and select all the elements, click update and try running.

If the issue persist please share the model file so that we can review.

<?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>

I am still getting the same error. I have attached the file in this quote. Thank you so much for your help. Also, will the analysis still work in Optisturct if I change the 2D settings according to Radioss? And if I have done the analysis in Radioss, then can i still do the optimization in Optisrtuct?

Unable to find an attachment - read this blog

Altair Forum User

Hi,

Please share the *.hm or _0000.rad file.

Here we are only updating the element types. If you want to work on OptiStruct, please select OptiStruct as the user profile so that all the cards for the same will be loaded.

Altair Forum User

Hi,

Please share the *.hm or _0000.rad file.

Here we are only updating the element types. If you want to work on OptiStruct, please select OptiStruct as the user profile so that all the cards for the same will be loaded.

Okay, thank you. I am attaching the .hm file here.

Thank you once again for helping me out.

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Altair Forum User

Okay, thank you. I am attaching the .hm file here.

Thank you once again for helping me out.

I had another question. If I am trying to carry out FE Analysis, can i keep both 2D and 3D mesh elements and still be able to do the analysis?

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Altair Forum User

Hi.

Just reviewed your file. This is not a RADIOSS solver file, but seems like an OptiStruct file. Based on the type of analysis choose the solver and run the analysis.

I recommend you to download and go through our free ebook Practical Aspects of Finite Element Simulation (A Study Guide) which describes the basic guidelines of finite element analysis.

Yes, you can have both 2D and 3D elements in a model for doing an analysis.

Altair Forum User

Thank you for your help. I got a bit confused with the file names as I had run analysis on both RADIOSS and OptiStruct. Can you tell me if there are any modelling errors with the file I gave you?

Altair Forum User

Hi,

There are multiple modelling errors in the model.

You have created solid property in the model but there are no solid elements in the model. For shell elements you can assign them with PSHELL property.

I think the model is not complete, that is there are components still need to be meshed.

You have created a load collector 'loads' but forces created are also in SPC load collector along with the boundary conditions. Please organize them.

Please clear these errors and try running in OptiStruct solver.

Altair Forum User

I wanted to know how to delete 2D mesh when my model has both 2D and 3D mesh? I deleted using tools>delete?elements>tria3 and quad4 (for 2D), but I am not sure why it is deleting the solid elements too

Altair Forum User

What i have done is that I have created 2D mesh for the 3 sub-regions (using automesh) and then made 3D mesh by Solidmap. Then i wanted to delete the 2D mesh and hence used delete from the tools pane.

Altair Forum User

Hi,

This type I have used terta mesh and still have got the same error while doing the analysis. Can you please tell me the solution to this problem. I will also review the FE book. I have attached the .fem file over here.

Thank you.

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Altair Forum User

Hi,

This error is because the load collector 'loads' is empty. The force created is also in SPC load collector. In the loadstep you have recalled te 'loads' load collector which is empty.

I just organized the load collectors, ie moved the force to 'load'load collector and the model is running fine.

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Altair Forum User

Hi, Thank you so much for your help. I did the analysis and it does work. However, after opening in Hyperview, the mid-section of the model is not there in the result, i.e the designable component. Can i know why? I have attached the screenshot of the same.

Thank you.

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Hi,

Please try with the attached.

<?xml version="1.0" encoding="UTF-8"?>

Unable to find an attachment - read this blog

Altair Forum User

Thank you! I have been able to carry out the optimization for the model. Well can you suggest a method as to how i can plot the weight vs iteration plot of the model in hyperview?

Thank you for your help.

Altair Forum User

I figured it out. Thank you so much for helping me out!

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