findStructuralBC
Find structural boundary conditions and boundary loads assigned to geometric region
Domain-specific structural workflow is not recommended. New features might not be compatible with this workflow. For help migrating your existing code to the unified finite element workflow, see Migration from Domain-Specific to Unified Workflow.
Description
returns the structural boundary conditions and boundary loads assigned to the region
specified by sbca
= findStructuralBC(boundaryConditions
,RegionType
,RegionID
)RegionType
and RegionID
. The
function returns structural boundary conditions assigned by structuralBC
and boundary loads assigned by structuralBoundaryLoad
.
Examples
Find Structural Boundary Conditions
Find the structural boundary conditions for the faces of a 3-D geometry.
Create a structural model and include a block geometry.
structuralmodel = createpde("structural","static-solid");
Include the block geometry in the model and plot the geometry.
importGeometry(structuralmodel,"Block.stl"); pdegplot(structuralmodel,"FaceLabels","on","FaceAlpha",0.5)
Specify the surface traction on face 1 of the block.
structuralBoundaryLoad(structuralmodel,"Face",1, ... "SurfaceTraction", ... [100;10;300]);
Specify the pressure on face 3 of the block.
structuralBoundaryLoad(structuralmodel,"Face",3,"Pressure",300);
Apply free constraint on faces 5 and 6 of the block.
structuralBC(structuralmodel,"Face",[5,6],"Constraint","free");
Check the boundary condition specification for faces 1 and 3.
sbca = findStructuralBC(structuralmodel.BoundaryConditions, ... "Face",[1,3]); sbcaFace1 = sbca(1)
sbcaFace1 = StructuralBC with properties: RegionType: 'Face' RegionID: 1 Vectorized: 'off' Boundary Constraints and Enforced Displacements Displacement: [] XDisplacement: [] YDisplacement: [] ZDisplacement: [] Constraint: [] Radius: [] Reference: [] Label: [] Boundary Loads Force: [] SurfaceTraction: [3x1 double] Pressure: [] TranslationalStiffness: [] Label: []
sbcaFace3 = sbca(2)
sbcaFace3 = StructuralBC with properties: RegionType: 'Face' RegionID: 3 Vectorized: 'off' Boundary Constraints and Enforced Displacements Displacement: [] XDisplacement: [] YDisplacement: [] ZDisplacement: [] Constraint: [] Radius: [] Reference: [] Label: [] Boundary Loads Force: [] SurfaceTraction: [] Pressure: 300 TranslationalStiffness: [] Label: []
Check the boundary condition specification for faces 5 and 6.
sbca = findStructuralBC(structuralmodel.BoundaryConditions, ... "Face",[5,6]); sbcaFace5 = sbca(1)
sbcaFace5 = StructuralBC with properties: RegionType: 'Face' RegionID: [5 6] Vectorized: 'off' Boundary Constraints and Enforced Displacements Displacement: [] XDisplacement: [] YDisplacement: [] ZDisplacement: [] Constraint: "free" Radius: [] Reference: [] Label: [] Boundary Loads Force: [] SurfaceTraction: [] Pressure: [] TranslationalStiffness: [] Label: []
sbcaFace6 = sbca(2)
sbcaFace6 = StructuralBC with properties: RegionType: 'Face' RegionID: [5 6] Vectorized: 'off' Boundary Constraints and Enforced Displacements Displacement: [] XDisplacement: [] YDisplacement: [] ZDisplacement: [] Constraint: "free" Radius: [] Reference: [] Label: [] Boundary Loads Force: [] SurfaceTraction: [] Pressure: [] TranslationalStiffness: [] Label: []
Input Arguments
boundaryConditions
— Structural boundary conditions
BoundaryConditions
property of
StructuralModel
object
Structural boundary conditions of the model, specified as the
BoundaryConditions
property of a StructuralModel
object.
Example: structuralmodel.BoundaryConditions
RegionType
— Geometric region type
"Edge"
for a 2-D model | "Face"
for a 3-D model
Geometric region type, specified as "Edge"
for a 2-D
model or "Face"
for a 3-D model.
Example: findStructuralBC(structuralmodel.BoundaryConditions,"Edge",1)
Data Types: char
| string
RegionID
— Geometric region ID
vector of positive integers
Geometric region ID, specified as a vector of positive integers. Find the
region IDs by using pdegplot
.
Example: findStructuralBC(structuralmodel.BoundaryConditions,"Face",1:3)
Data Types: double
Output Arguments
sbca
— Structural boundary conditions and boundary loads assignment
StructuralBC
object
Structural boundary conditions and boundary loads assignment, returned as
a StructuralBC
object. For details, see StructuralBC Properties.
Version History
Introduced in R2017b
See Also
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