5.8.5. Additional Options

NumFibers = INT Define the number of fibers, stored in *MAT 249 format, that are considered for the mapping process.
SourceMaterialModel = INT The number of the material model used for the generation of the *.dynain file. The only available material model is *MAT 249.
POSTV = INT

Defines the data written to the *.dynain file. POSTV = 63 and POSTV = 8 are supported. As an alternative, you can either define POSTV = 0 or completely ignore this flag. History variables are then expected to be written as default. If the source mesh is generated by LS-DYNA version R9, POSTV = -9 can be defined. Further options will be added on request.

ThroughThicknessAveraging = YES

NO

Set to YES (recommended), if orientation averaging is to be performed through the thickness of the source parts, or if a specific stacking sequence is needed to define the fiber orientation.

You should use this option in cases where orientations are being transformed and should therefore appear in a specific order, rather than using arbitrary orientations throughout the thickness.

If the target material model is defined as *MAT 249, fiber averaging differs slightly. Refer to the respective explanations below.

When set to YES, the NumberOfFiberBundles option (below) must be defined.

NumberOfFiberBundles = INT Define how many averaging options are performed.
FiberBundle#i: Counter for fiber bundles.
MatID = INT Material ID of the fiber bundle.
Lay = INT, IP = INT, Fib = INT

Repeat this field as many times as necessary for each of the averaging possibilities:

Lay refers to the Layer (using the same numbering as in SourcePID#i) of stacked elements in the source mesh.

IP is the respective IP in that layer.

Fib is the respective fiber.

All values listed here are averaged until the next different input parameter is defined.

The Lay=INT, IP=INT, Fib=INT definition should be handled differently for the *MAT 249 target material model. Since this material model can represent up to 3 distinct fiber directions, the direction averaging per target through-thickness integration point should also support up to 3 fiber directions.

The integer value for Fib is considered as a digit-wise value only if target material model is *MAT 249.

This digit-wise integer represented by,

As can be seen above, the digit position represents the store-position on the target mesh and the value represents which source fiber should be used to do the averaging. An example is given in Note 2 under Notes.