Difference between revisions of "Isotropic, Hyperelastic-Plastic Mie-Grüneisen Material"

Revision as of 13:40, 31 December 2013

This MPM material is identical to an HEIsotropic material in that it uses a Mie-Grüneisen equation of state in the elastic regime. The elastic shear terms are handles like the Neohookean shear terms in the HEIsotropic material. A small-strain version of this material is also available in a MGEOSMaterial material; this hyperelastic version is usually the preferable choice for accurate simulations.

The Mie-Grüneisen equation of state properties and the hardening law properties are set with the following options:

Property	Description	Units	Default
C0	The bulk wave speed	m/sec	4004
gamma0	The γ₀ parameter	none	1.64
S0	The S₀ parameter	none	1.35
S1	The S₁ parameter	none	0
S2	The S₂ parameter	none	0
G	Low-strain shear modulus	MPa	none
Hardening	This command selects the hardening law by its name or number. It should be before entering any yielding properties.	none	none
(yield)	Enter all plasticity properties required by the selected hardening law.	varies	varies
(other)	Properties common to all materials	varies	varies

None

@@ Line 27: / Line 27: @@
 | (yield) || Enter all plasticity properties required by the selected [[Hardening Laws|hardening law]]. || varies || varies
 |-
-| [[Common Material Properties|(other)]] || All other properties are identical to the properties for an [[Isotropic Material|isotropic material]], except that only shear modulus, G, is used and thermal expansion coefficient, alpha, is ignored. || varies || varies
+|-
+| ([[Common Material Properties|other]]) || Properties common to all materials || varies || varies
 |}