Pressure output
Altair EmployeeHi,
I am using Hypermesh for a short time.
I would like to know how to visualise pressure as an output in Hyperview. Using Hyperview, I can now see the displacement of my model and would like to see the pressure also.
In Optisctruct, I have created a controlcard and selected Outputs, then Pressure.
When I run Hypermesh, import the .h3d file and choose de contour, I can still select displacement but not pressure.
Could you help me please ? Do I have something else to create or select ?
Thank you
Answers
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Hi Laure,
assuming you are referring to contact pressure output: it is not supported in linear static analysis.
Please search the forum for queries first, if they are already treated as in this case:
https://community.altair.com/community?id=community_question&sys_id=bb76483a1b2bd0908017dc61ec4bcba90 -
Thank you for your answer.
In fact I only have 1 body, so I don't have any contact.
I have used PSCD loads to apply a displacement at some points of the component.
Is it possible to see in Hyperview the pressure corresponding to the applied displacement (instead of seeing the displacement corresponding to the applied pressures) ?
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Hi
Could you try activating SPCF and OLOAD in control card GLOBAL OUTPUT REQUEST?
I think SPCD will be converted to OLOAD
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You can also try ELFORCE, which is available for shell and other 1D elements.
The output on shell element is force/unit length
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Thank you for your help.
I activated SPCF and OLOAD in control card Global Output Request.
I now have this types of result in Hyperview :
Here are the SPCDs I applied on the model in Optistruct, the displacement and the SPCF Forces.
As the biggest SPCDs are in the right side, the biggest displacement is also on the right side. Is it normal that there is no SPDF Froces on the right ?
I am not sure that it shows what I want to see : the pressures that would deform the component (make the displacement that I constrained with the SPCD).<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
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Could you show OLOAD (applied forces)?
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Hi
Right, the applied load are shown as zero with OLAOD (applied forces).
With ELFORCE, it doesn't change anything (don't have any more 'result types' in HyperView).
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Altair Forum User said:
Hi
Right, the applied load are shown as zero with OLAOD (applied forces).
With ELFORCE, it doesn't change anything (don't have any more 'result types' in HyperView).
OK, that's because you have solid elements and ELFORCE are not available for solid elements. I will check if there is any workaround for the same.
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Altair Forum User said:
Yes, I understand.
in equations K.U=F , after set zero terms of F at SPC,SPCD dofs, optistruct will output F as OLOAD
so I think output SPCF data are OK
ELFORCE is internal force, I think it's not current @Laure 's concern
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Altair Forum User said:
Thank you for your help.
I activated SPCF and OLOAD in control card Global Output Request.
I now have this types of result in Hyperview :
<?xml version="1.0" encoding="UTF-8"?>
Here are the SPCDs I applied on the model in Optistruct, the displacement and the SPCF Forces.
As the biggest SPCDs are in the right side, the biggest displacement is also on the right side. Is it normal that there is no SPDF Froces on the right ?
I am not sure that it shows what I want to see : the pressures that would deform the component (make the displacement that I constrained with the SPCD).<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?><?xml version="1.0" encoding="UTF-8"?> It looks abnormal, but I think you should activate GPFORCE in GLOBAL OUTPUT REQUEST
because above forces are only at SPCD nodes
after applying SPCD, matrix K will be Kmod and vector F will be Fmod
I think GPFORCE may represent Fmod
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Altair Forum User said:
Yes, I understand.
in equations K.U=F , after set zero terms of F at SPC,SPCD dofs, optistruct will output F as OLOAD
so I think output SPCF data are OK
ELFORCE is internal force, I think it's not current @Laure 's concern
Agree, but it can be approximated.
Altair Forum User said:GPFORCE in GLOBAL OUTPUT REQUEST
because above forces are only at SPCD nodes
after applying SPCD, matrix K will be Kmod and vector F will be Fmod
I think GPFORCE may represent Fmod
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