Submodeling in Hypermesh [Optistruct Tutorial]

In this Optistruct tutorial, we will perform submodeling in Hypermesh. This is also known as global-local analysis.

Model setup is performed in Hypermesh and the Optistruct solver is used to extract the results. The post-processing of FEA results is done using Hyperview.

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#aeroswap #hypermesh #optistruct #fea #cae

[kenkim]

Hi Swap thanks for sharing this, it is a good modeling technique to show a comparison between global vs local stress analysis. In lot of cases local models are preferred to perform structural assessment on specific parts of interest. Global models also come in handy showing further load distribution to interfacing components, which is a reason why stress reduction is shown as covered in your presentation. So it is up to analysts decision how to idealize the environment based on assessment objectives.

[emmanuelvassilakis]

Well done Swapnil! An excellent presentation of a long anticipated procedure. As in every "global to local" (or submodeling, or "zoom analysis"), it is a good practice to plot the reaction forces both on the global model and the local one in order to confirm that the values match each other. Thank you!

[fatihvural]

Please Come back brother. Everyone waiting you. You and your videos most beatiful serious on the internet.

[vimvigour]

Fantastic video. A few questions:
1. If we want to further refine the mesh, can we add another submodel and only run it or do we have to run all subcases (including the large global model) again?
2. How is this method different from including Grid Point Forces in the output of the global model, and then importing those results to a FBD in the submodel?
3. If we refine the submodel mesh a lot, how do we avoid the stress concentrations at the nodes of the local mesh that are equivalenced with the global mesh?
Thanks.

[adelinewar]

Hello, aeroswap. Suppose we have different young’s modulus for every element in the model. How will you represent that in Hypermesh and do the analysis? Can you make a video on it with results such as Von Mises stress shown? I would be so glad if you could help me with this. Thank you

[ravindermuppdi]

Waiting for this video sir..thank you..can you please explain in submodelling abaqus

[FatihVural-wh]

"Hi Swap, we are waiting for you to continue the lessons. Could you continue the videos? We are waiting excitedly."

[perebezik]

I like your videos! Very useful!
Courd U please make one about geometry processing for complicated structure with T-joints and various thicknesses. Where it's gonna require some midsurface creation for thin parts and appropriate 2D mesh and some 3D mesh at latch locations (where thickness is too big and it should be considered as solid). That would be some doors or lids with complex machined edges.

[rajeshsamal]

can you make a video on model reduction by using CBN(ie Craig Bampton method) with solver Optistruct ?

[vishnubalasubramanian]

Bro please do 1000 - 10000 videos on Hypermesh/HyperWorks tutorials. Your videos are wonderful and Invaluable. Its my humble request Please and don't forget to upload the modep files in description which you used in the YouTube videos

[athrest]

Can u pls explain adhesive integrity analysis

[aravindpalaparthi]

hi can you tell me how to give coordinates for cylindrical anisotropic thermal conductivity for a battery cell in hyperworks?

[burakaldogan]

I am using altair student 2022 version but ı dont have altair compute control tool. Have can ı solve my setup?

[SuperMohamedslama]

can you share an example with complex hexa mesh Thank you

[arturczura]

Hi, very good video!
But I have one question. Is that any option to run local submodel analysis only? Sometimes bigger model analysis takes too long and will be perfect to run it as a submodel only. Did you hear about it?
Thanks!

[chungo]

I have a trouble when i run the problem. *** ERROR # 216 ***
Rigid element 2206 is entirely outside
the domain of submodel for subcase 2.
Can you help me to fix this error?

[cR]

Hi bro, I am new to your channel, really liked your content. Just started with Hypermesh, an issue came up write away, I was importing one of your tutorial IGES file for my practice but for some reason it shows nothing on the screen, I tried different different IGES files but after clicking Import it shows nothing on the screen just the background color. Can you please help me figure this out?

[Indonesiaian]

Hi I am sorry for out of topic
Did you know why the Hypermesh is so heavy application
I have Hypermesh 2023 suite in my PC (Ryzen 5600X, 16Gb RAM, RTX 3060 12Gb). My computer lagging so much even if only I import geometry
The geometry is a simple small 1Part (motorcycle shock absorber head)
Actually there is nothing suspicious in the Windows Task manager (CPU 10~20%, RAM 50%)
I don't know why this can possibly happen
Is there anything that I can do to make the application lighter?

[devakarh]

Kindly please upload analysis model toturoials in ANSA software

[ankitshende]

Why you have used RBE3 here instead of RBE2?