Difference between revisions of "Mooney Membrane Material"
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== Constitutive Laws == | == Constitutive Laws == | ||
This [[Material Models|MPM material]] is in development | This [[Material Models|MPM material]] is in development is only available in [[OSParticulas]]. | ||
== Material Properties == | == Material Properties == | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 12: | Line 9: | ||
! Property !! Description !! Units !! Default | ! Property !! Description !! Units !! Default | ||
|- | |- | ||
| (properties) || Enter all properties for the corresponding solid [[Mooney | | (properties) || Enter all properties for the corresponding solid [[Mooney Material|Mooney material]] || none || none | ||
|- | |- | ||
| dither || Add random spread of initial orientation angles to better model compression of thin membranes || degrees || 0 | | dither || Add random spread of initial orientation angles to better model compression of thin membranes || degrees || 0 | ||
|} | |} | ||
Note that unlike a solid [[Mooney | Note that unlike a solid [[Mooney Material|Mooney material]], a Mooney membrane can be incompressible by setting the Poisson's ratio of 0.5. | ||
== History Variables == | == History Variables == | ||
This material uses one history variable: | |||
# J or the determinant of the deformation and equal to V/V<sub>0</sub>. | |||
== 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 [[XMLData Command]] 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 defining terms in [[Entity Command|Entity commands]] is a good way to couple scripting commands to <tt>XML</tt> data blocks. | |||
Latest revision as of 15:20, 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 Command 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 defining terms in Entity commands is a good way to couple scripting commands to XML data blocks.