10.25. Compute Schmid Factors
Group (Subgroup)
Statistics (Crystallographic)
Description
This Filter calculates the Schmid factor of each Feature given its average orientation and a user defined loading axis. The Schmid Factor is the combination of the component of the axial force F that lies parallel to the slip direction and the component that lies perpendicular to the slip plane. The equation for the Schmid Factor is given as:
Schmid Factor = (cos φ cos λ)
The angle φ is the angle between the tensile axis and the slip plane normal, and λ is the angle between the tensile axis and the slip direction in the slip plane.
The Filter determines the Schmid factor for each Feature by using the above equation for all possible slip systems (given the Feature’s crystal structure). The largest Schmid factor from all of the slip systems is stored for the Feature. Only the Schmid factor is used in determining which slip system’s Schmid factor to report. The critical resolved shear stress for the different slip systems is not considered.
Input Parameter(s)
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Loading Direction |
Vector of Float32 Values |
Order=X,Y,Z |
The loading axis for the sample |
Store Angle Components of Schmid Factor |
Bool |
Whether to store the angle components for each Feature |
|
Override Default Slip System |
Bool |
Allows the user to manually input the slip plane and slip direction |
|
Slip Plane |
Vector of Float32 Values |
Order=X,Y,Z |
Vector defining the slip plane normal. |
Slip Direction |
Vector of Float32 Values |
Order=X,Y,Z |
Vector defining the slip direction. |
Input Feature Data
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Phases |
Array Selection |
Allowed Types: int32 Comp. Shape: 1 |
Specifies to which Ensemble each cell belongs |
Average Quaternions |
Array Selection |
Allowed Types: float32 Comp. Shape: 4 |
Specifies the average orienation of each Feature in quaternion representation |
Input Ensemble Data
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Crystal Structures |
Array Selection |
Allowed Types: uint32 Comp. Shape: 1 |
Enumeration representing the crystal structure for each Ensemble |
Output Feature Data
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Schmids |
DataObjectName |
The name of the array containing the value of the Schmid factor for the most favorably oriented slip system (i.e., the one with the highest Schmid factor) |
|
Slip Systems |
DataObjectName |
The name of the array containing the enumeration of the slip system that has the highest Schmid factor |
|
Poles |
DataObjectName |
The name of the array specifying the crystallographic pole that points along the user defined loading direction |
|
Phis |
DataObjectName |
The name of the array containing the angle between tensile axis and slip plane normal. |
|
Lambdas |
DataObjectName |
The name of the array containing the angle between tensile axis and slip direction. |
Example Pipelines
(05) SmallIN100 Crystallographic Statistics
License & Copyright
Please see the description file distributed with this Plugin
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