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Mesh with nodes

Altair Forum User

Hi,

I am a beginner pon hypermesh and i have a question, how can i mesh using nodes i have already place?

I send a picture for a better understanding.

Then i do not remember how can i put thicknesses on midsurface?

THanks you in advance

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Altair Forum User

Hi Ducret,

Try Ruled or Spline option in the 2D panel for meshing.

To assign thickness, please go through this video below.

Thank you

Altair Forum User

Hi,

Thanls for your answer, for my second mesh (usind 2D automesh), thickness assignment has been performed thanks

My concern is that when i try to perform mesh (selectionning nodes created), it do not work,

For a ruled mesh (i select the node in corner for 1st line then 2nd line the length , like if i want to perform a swquare), it says 'one or more nodes appear in both input list, which hones i have to select?

And For Spline, it do not follow the nodes when it mesh.

I think, i do not choose the right nodes

Thanks again for your answer.

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QuyNguyenDai

For screenshot why not use JPG or PNG?

Altair Forum User

Sorry, i put them in PN G,

Thank you for the remark

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

tinh

when creating ruled mesh, don't select any node on both list 1 and 2

Altair Forum User

Hi Ducret,

Try as shown below. For node list one : Select the nodes which i have marked in red. For node list two : Select the nodes which i have marked in blue.

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

Thank you

Mario_21478

Hi,

If you want to ruled mesh based on nodes, then you can't use the blue nodes.

Try to use bottom line as first input, top line as second input. (mesh w/o surf) See picture 1.

Press 'create' and Hypermesh is switching to the Automesher.

Adjust the number of elements on left and right side, press 'mesh'. See second picture.

Best Regards,

Mario

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

Altair Forum User

Hi Ducret.,

Is your problem solved?

Thank you

Altair Forum User

Hi, sorry for the delay,

I was working on other things.

The ruled mesh works on 'rectangle' surfaces thank you, but my concern is about the upper part of my part.

However, i also find an alternative using fixed point, when i have put my nodes as i want, i create fixed points (geom/create/fixed point), i select the surface then the nodes.

When the fixed point are created, the i create a 2D automech and it works.

Concerning the upper of my part, when i use rules mesh, i have a meshing as follow (with a bad Quality index):<?xml version="1.0" encoding="UTF-8"?>

See here after the meshing needed in order to study correctly the deformation ans constraints in this area<?xml version="1.0" encoding="UTF-8"?>

Then, my concern will also be in how to create a medmesh thickness on this part, wich is evolutive as per sketch hereafter<?xml version="1.0" encoding="UTF-8"?>

I was thinking about put the same thickness as a rectangle with average thickness.

Then for my study, i ll have to remove material on upper side only (to simulate damage removal by blending in this area), and then check if the part support the ultimate loads, i was thinking about putting an ofset on the midsurface and then change the thickness with the needed value, or i do not know if it is possible to use 'morph handle', but it will be for later, i am not a this stage at all.

Thanks for your support.

Altair Forum User

Ducret,

You can also use edit element option in the 2D panel to Create elements at critical regions manually. Please try this option, i hope it helps you.

Thank You

Altair Forum User

I ll try this method,

I ll report back the result

Thanks a lot.