Difference between revisions of "Mooney Membrane Material"
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== Examples == | == Examples == | ||
Membrane materials can only be defined using <tt>XML</tt> commands. In scripted files, the <tt>XML</tt> commands can be within an <tt>XMLData</tt> block where first parameter add <tt>XML</tt> to the <tt>Material</tt> element and second parameter is material name that can be used in other scripting commands | |||
XMLData "Material","membrane" | |||
<Material Type="40" Name="Membrane"> | |||
<E>&Mmod;</E> | |||
<nu>&Mnu;</nu> | |||
<dither>0</dither> | |||
<rho>&Mrho;</rho> | |||
< alpha>60</alpha> | |||
</Material> | |||
EndXMLData | |||
Notice the use of entities is a good way to coupled scripting commands to <tt>XML</tt> data blocks. | |||
Revision as of 15:14, 26 April 2024
Constitutive Laws
This MPM material is in development is only available in OSParticulas.
Material Properties
| Property | Description | Units | Default |
|---|---|---|---|
| (properties) | Enter all properties for the corresponding solid Mooney material | none | none |
| dither | Add random spread of initial orientation angles to better model compression of thin membranes | degrees | 0 |
Note that unlike a solid Mooney material, a Mooney membrane can be incompressible by setting the Poisson's ratio of 0.5.
History Variables
This material uses one history variable:
- J or the determinant of the deformation and equal to V/V0.
Examples
Membrane materials can only be defined using XML commands. In scripted files, the XML commands can be within an XMLData block where first parameter add XML to the Material element and second parameter is material name that can be used in other scripting commands
XMLData "Material","membrane"
<Material Type="40" Name="Membrane">
<E>&Mmod;</E>
<nu>&Mnu;</nu>
<dither>0</dither>
<rho>&Mrho;</rho>
< alpha>60</alpha>
</Material>
EndXMLData
Notice the use of entities is a good way to coupled scripting commands to XML data blocks.