Contact analysis

Altair Forum User

Good evening,

 

I made the template attached below. The target is to analyze the contact between two solid bodies. When I start the analysis gives me an error. Can you tell me how can I solve this problem?

 

Thanks in advance for your assistance.

Unable to find an attachment - read this blog

Altair Forum User

If you can help I am attaching a picture of the error. Help me please.

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

Rahul Rajan_21763

Once you are done with 3d mesh its recommended to delete 2d mesh.Here in your model you have 2d element without property.That is what creating problem of Error 2372.

Please delete element by config quad4 & tria3. 

Altair Forum User

Thanks for the reply, but how can I get rid of the 2D mesh without compromising the 3D mesh?

 

Thanks in advance for your assistance.

Altair Forum User

Hi antonio93, for this you have to follow this steps :

-first do you 2D mesh 

-create a new component named as 3D_mesh_name_of_component, so this will be normally your current component (if not, make it current : right click on it and click Make Current)

-Do your 3D mesh (2D to 3D)

-Create a new component named as 2D_mesh_name_of_component, so this will be normally your current component (if not make it current : right click on and Make Current)

-Move your 2D 'initial' mesh to the last component you created 2D_mesh_name_of_component. For this your have to go to Tools/Organize/Move : select only you 2D mesh (desactivate your 3D mesh to do it and do elems/display) and put it on your 2D_mesh_name_of_component.

-Delete the  component you created 2D_mesh_name_of_component

 

It will normally remain juste the 3D mesh /emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

 

GAYE

PS : If your have many component, do this steps it in every component

 

Altair Forum User

Hello, thank you for the help. I did as you said but now gives me a new error.

 

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

 

Thanks in advance for your assistance.

 

Altair Forum User

Hi Antonio,

 

Please share the .out file. Looks like some data is missing related to pyramid elements.

Altair Forum User

Sorry I forgot to put the material on the property. Now it gives me this error. Excuse the insistence but I am trying to learn to use the program for my thesis.

 

Thanks in advance for your assistance.

 

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

Altair Forum User

Hi Antonio93,

this i due to bad quality element (tet collapse, jacobian, mix angle, max angle...). Please have a look about quality index, see altair web side for more details: http://www.altairuniversity.com/modeling/element-quality/

If you want, you can desactivate the element quality check doing by the solver. To do so, you have to go to :  Analysis/control cards/Param (use next boutton to find it if necessary)/Checkel--->No instead of YES. But bear in mind that if you desactivate the quality element check you can get poor result. So you must be careful to what you do !!

You can also see this for more details : 

 

GAYE

 

Altair Forum User

Good morning

Thanks for all the help. I did as you said and the analysis was completed. Now I have two more questions to ask you. This is my model. 

 

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

 

I would like to ask you how can I stiffen the surface subjected to pressure.

Also I would like to ask you why the deformation of the cylinder is as shown in the figures.

 

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

 

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

 

Thanks in advance for your assistance.

Rahul Rajan_21763

Geometry change would help you to stiffen like instead of half cylinder you can use block.Any other geometrical change you can do using hypermorph.

You can plot displacement along x,y&z axis.So plot displacement along radius of cylinder.

Altair Forum User

Good morning,

 

Thanks for the reply. You could describe to me the steps to get rigid the half-cylinder plane surface.

 

Thanks in advance for your assistance.

Rahul Rajan_21763

Material change is also one option for increasing stiffness.You can refer attach screenshot tutorial for same.

I said you can make geometry changes like cube instead of half cylinder.Shape change is possible using Hypermorph.

 

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

Altair Forum User

Thank you very much Rhaul.

Anup Gaonkar

Altair Forum User said:

Once you are done with 3d mesh its recommended to delete 2d mesh.Here in your model you have 2d element without property.That is what creating problem of Error 2372.

Please delete element by config quad4 & tria3. 

Sir, I facing a same error ERROR 2372  No PSOLID properties exist in bulk data. 

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

FaroukM

Altair Forum User said:

Sir, I facing a same error ERROR 2372  No PSOLID properties exist in bulk data. 

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

I think you forgot to define the property for your component .... or material on property ...

Can you please the *fem file ?

Anup Gaonkar

Altair Forum User said:

I think you forgot to define the property for your component .... or material on property ...

Can you please the *fem file ?

 

Altair Forum User said:

I think you forgot to define the property for your component .... or material on property ...

Can you please the *fem file ?

My file size is 62.7 mb it exceeding the size is their any other way that I can send u

Anup Gaonkar

Altair Forum User said:

 

My file size is 62.7 mb it exceeding the size is their any other way that I can send u

I crossed checked the component all. Property and material r been defined

 

FaroukM

Unfortunately, I can't help you without *fem file ! sorry mate !

 

Try to see if you have a duplicated mesh for example ...

Anup Gaonkar

Altair Forum User said: