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Need help in Composite Post-processing Operations

Burner2k

Hello,

Having issue with doing post-processing op of a composite part in HV.

Created this component in HM. The zero degrees plies (or Material Orientation direction is along +Z axis). The set up is pretty simple. Fixed on one side and an axial load on the other side. The solver I used is MSC Nastran and PCOMPG cards were used to define laminate.

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

The cross-section of the component showing the laminate.

ply.png.ab6803c7237844be21b5c677aac507dd.png

Selected 'Composite' option during the initial setup where I point out to model & results file.

The option Global System (projection: None) is greyed out. Was under the impression that I could select 'Projection Active' (or something similar) and use the Global Z direction to tell HV to transform Ply 1 XX results. This is how I usually post-process in Patran.

Next I created a user defined coord system and had HV point it out to transform (System id =1). But still I am not getting any output. What am I doing wrong?

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

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Burner2k

I also want to add that I am able to obtain any deformation pattern in Hyperview. Although HV shows the Contour values of Deformation in the model, somehow it is not showing the deformed shape. Supposed to have a slight bend as shown below in MSC Patran.

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

Altair Forum User

Hi @Burner2k

Could you please share the result file?

Burner2k

Hi,

I have attached a copy of the both bdf file & op2. Hopefully you'll have better luck than I did.

Thx,...

Unable to find an attachment - read this blog

Altair Forum User

Hi @Burner2k

Can you check if you see any results in Analysis system?

Burner2k

Hi Prakash,

Yes, I am getting results in Analysis System.

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

What does this DEFORM function do in Hypermesh? I was not able to find any references in Hypermesh Documentation. If I check the Deform check box, I am supposed to select a Load Collector. Should this be checked to obtain Deformation shape?

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

Also, in Hyperview I created a Projection Rule where the Global Primary Axis points to or transformed to Z direction as shown below:

03.PNG.75423719a9157668a44de9e377c45cee.PNG

Still no joy in getting Ply results displayed

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

Burner2k

Hi Prakash,

Are you having similar issues I am having at my end? Hoping for suggestions on how to resolve the above.

Altair Forum User

Hi @Burner2k

Deform defines axial deformation for 1D elements.

I will check if I can reproduce the same at my end and I will share my findings.

Altair Forum User

Hi @Burner2k

I see that projection rule works for element stress and not for composite stress.

I am going to check with experts on this.

Burner2k

Hi,

Did not want to start another thread but I dunno why I am not able to plot deformation shape in Hyperview. I even made a very simple Test case of a 2D Isotropic plate subjected to axial load. But I just not able to obtain the deformation shape on HV.

I am attaching the bdf & op2 files. I want to get some resolution on this soon. Please help.

Unable to find an attachment - read this blog

Altair Forum User

Hi @Burner2k

Do you see displacement and stress contour?

If yes, change the Deformation shape scale factor.

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

Burner2k

Hi Prakash,

I was just about to post that I think HV was showing the deformed shape but I had to adjust the scale of it. I will investigate the same on other models including the composite one and report back.

In the mean time, I would appreciate if you could do give a glance on why Stress Global Projection for individual plies are not working.

Thanks for your reply. Appreciate the continued support on this forum.

Altair Forum User

@Burner2k

I have already in touch with Devs. I am expecting some feedback today/ tomorrow

Burner2k

^^Cool man. Thanks for the update...

Burner2k

Hi Prakash,

Any updates from developers about the composite transformation issue?

Altair Forum User

No, not yet.

Altair Forum User

Hi @Burner2k

So here is an update:

Try after loading both model file and .op2 file in HyperView with Advanced Option

Burner2k

^^What exactly does the above mean? I do load both files IIRC. I point out to bdf file & op2 files and then to 'Composite' when I first start HV. Unless that has to be repeated else where...I would say that I am doing that already. I am currently away from computer. Will try to post pictures later.

Altair Forum User

HI,

Yes I can see that from your first image.

Please use Advanced instead of composite Result Math template.

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

Burner2k

Hi Prakash,

I did a quick check per your suggestion using Advanced template instead of Composite and it seems to work. I forgot to do a check on transformation of results for a User Defined Coord Sys, but I'll take it that works as well while using Advanced template.

Thanks for your support and resolution. Appreciate it a lot.

Altair Forum User

Hi @Burner2k

Please share your finding regarding the same.

If you feel something is NOT correct, please do let us know... /emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>