MATUSR .dll file
Altair EmployeeHello,
I want to create a custom mat card in optistruct using MATUSR card
I saw that I have to load a dll file in which the information are stocked. My question is: is this file creating with a specific subroutine/code? How do I write it?
Thx
Answers
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Hi,
You need umat.dll to use MATUSR. I am checking more about this and will get back to you soon.
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Hi,
You need the .dll file which needs to be associated with the .fem file. Please check the attachment.
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Altair Forum User said:
Hi,
You need the .dll file which needs to be associated with the .fem file. Please check the attachment.
Hi thk you for your reply.
But if I want to create my own law I have to create a new dll file? I don't see the attachment can you re send it?
My goal is to create a law for two materials in 1 component with diffuse transition between both mat. like in this pic.
Thk you
D
<?xml version="1.0" encoding="UTF-8"?>
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PFA .fem deck & dll file.
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Thk.
So, the dll file is th subroutine file?
If yes do you have docuentation on how to write a subroutine for matusr for optistruct?
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I had a document that explain how to write the user mat sub.
My first think is to do something like this:
Put 2 properties E1 and E2 with E1 modulus young of material 1 and E2 modulus young of material 2. if I take a square of L length size I can model the evolution of E with an exponential law E(x=0)=E2 and E(x=L)=E1. Where x is the x coordinates of the integration point. My question is, in a subroutine is there a variable that contains the coordinates of this point like in ABAQUS (COORDS)??
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Do you know if it is possible to write a subroutine that define a user defined field variable? And link it with a dependency to material properties?
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