extract 1d element surface geometry
Altair EmployeeAnswers
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Hi Leox,
I think you can use solid map for this. First at the end of the 1D elements put 2D elements with dia at the end of the wire and create Solid (hex) elements by using node path option. select beam nodes as node path.
After that you can use sureface--> from Geometry option to create geometry in hypermesh.
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
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You can try below script whcih works with PBARL and PBEAML elements.
<?xml version="1.0" encoding="UTF-8"?>
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Hi Leox,
There is no direct option available to extract the geometry from 1D elements.
Similarly as the option above you can also try with the drag option (2D>Drag) to create a surface and/or mesh by dragging a series of nodes or lines, or to create elements by dragging selected elements.
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thanks to all for your replies.
I found a way to export geometry from all CBEAM elements of model automatically. It works perfect with circular section elements.
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Hi leox,
Is it possible to share ?
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is a c++ code that i wrote, working from .fem file.
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Hi Leox, could you tell where are the information of 1d element geometry (coordinates or? ) in .fem file? I just found the coordinates of notes. I am trying mapping a 1d bar element to 2d element.
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Altair Forum User said:
Hi Leox, could you tell where are the information of 1d element geometry (coordinates or? ) in .fem file? I just found the coordinates of notes. I am trying mapping a 1d bar element to 2d element.
Hi Bin,
you can find information about coordinates and element ID in 'Bulk data' section of Hypermesh user guide.
how much 1D elements are in your .fem file?
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Altair Forum User said:
Hi Bin,
you can find information about coordinates and element ID in 'Bulk data' section of Hypermesh user guide.
how much 1D elements are in your .fem file?
hi Leox,
Thank you for your answer. I just got the result of 1d optimization, and do not formally start my work. But the number of 1d elements should be not large.
In your method, with your c++ code the fem file will be modified, and when you input it back to hypermesh, the 3d geometry is ready? Could you tell me your process? Because I would like to get a 2d geometry of optimization based on 1d beam, then modify it and mesh it to a new 2d model for calculation. If I use a cad software for the middle step, it seems that I cannot get a automatisch process. Now I am thinking of different ideas without help of a cad software. For example, Prakash above also mentioned the method with a script.
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Altair Forum User said:
hi Leox,
Thank you for your answer. I just got the result of 1d optimization, and do not formally start my work. But the number of 1d elements should be not large.
In your method, with your c++ code the fem file will be modified, and when you input it back to hypermesh, the 3d geometry is ready? Could you tell me your process? Because I would like to get a 2d geometry of optimization based on 1d beam, then modify it and mesh it to a new 2d model for calculation. If I use a cad software for the middle step, it seems that I cannot get a automatisch process. Now I am thinking of different ideas without help of a cad software. For example, Prakash above also mentioned the method with a script.
In my method the FEM file is converted in IGES file.
The whole geometry of the model is ready (1d and 3d elements) and you can eventually edit on CAD software before importing on HM again.
You get 3d geometry of 1d CBEAM elements, with assigned PBEAML property.
Actually i m not sharing it.
If you want to test you can send me the .fem file and i will send you back IGES.
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Altair Forum User said:
In my method the FEM file is converted in IGES file.
The whole geometry of the model is ready (1d and 3d elements) and you can eventually edit on CAD software before importing on HM again.
You get 3d geometry of 1d CBEAM elements, with assigned PBEAML property.
Actually i m not sharing it.
If you want to test you can send me the .fem file and i will send you back IGES.
Hi Leox,
Thank you for your help. Right now I do not need to test something, but focus on different ideas.
Have you known or tried 'ossmooth' for this process?
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Altair Forum User said:
You can try below script whcih works with PBARL and PBEAML elements.
<?xml version="1.0" encoding="UTF-8"?>
this script does not work for my model
it says, the properties are not valid Nastran PBEAML T-beams
i tried both nastran and optistruct
i am using HW2017
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can anybody help this item?
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Altair Forum User said:
Hi Leox,
I think you can use solid map for this. First at the end of the 1D elements put 2D elements with dia at the end of the wire and create Solid (hex) elements by using node path option. select beam nodes as node path.
After that you can use sureface--> from Geometry option to create geometry in hypermesh.
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
is there a tutorial on how you made it !!!
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Altair Forum User said:
You can try below script whcih works with PBARL and PBEAML elements.
<?xml version="1.0" encoding="UTF-8"?>
Where did you get this script? I can't find it
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Altair Forum User said:
You can try below script whcih works with PBARL and PBEAML elements.
<?xml version="1.0" encoding="UTF-8"?>
I'm sorry, where did you find these? How do I access it?
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Altair Forum User said:
thanks to all for your replies.
I found a way to export geometry from all CBEAM elements of model automatically. It works perfect with circular section elements.
Hi leox,
Could you help me with how you do it? Because my fem file have a lot of 1D element that I want to convert to 2D shell element
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