Difference between revisions of "JWLPlusPlus Material"

Revision as of 14:21, 12 May 2020

This MPM material is a programmed-burn model for simulating certain detonation scenarios.

The properties for a Tait liquid are:

Property	Description	Units	Default
time0	Detonation start time	time units	0
StartX	Detonation starting x position	length units	0
StartY	Detonation starting y position	length units	0
StartZ	Detonation starting z position	length units	0
NormX	Planar wave normal in x direction	length units	0
NormY	Planar wave normal in y direction	length units	0
NormZ	Planar wave normal in z direction	length units	0
Dv	Detonation velocity	alt velocity units	none
Dw	Detonation front width. The extent of reaction of these particle goes from 0 to 1 over a length equal to this width. The time for a given partile to burn once it starts is thus Dw/Dv.	length units	none
DeleteDist	Particle deletion distance. If a particle is greater than this distance from the starting location (for spherical wave) or starting plane (for planar wave), the particle is deleted from the simulation.	length units	none
nm		none	none
Ajwl		pressure units	none
Bjwl		pressure units	none
Cjwl		pressure units	none
R1		none	none
R2		none	none
Omega		none	none
(other)	Properties common to all materials	varies	varies

This material tracks two history variables:

J or the volumetric strain (i.e., the determinant of the deformation gradient).
Fraction reacted. The fracture reacted is zero for particle ahead of the detonation wave front, one behind in, and transitions for zero to one across the detonation wave front defined by the Dw material property.

The following commands are for water for scripted or XML input files

@@ Line 45: / Line 45: @@
 |-
 | Omega ||  || none || none
+|-
+| ([[Common Material Properties|other]]) || Properties common to all materials || varies || varies
 |}