StructuralBC Properties

Geometric region type, specified as 'Face' for a 3-D geometry or 'Edge' for a 2-D geometry.

Data Types: char | string

Geometric region ID, specified as a vector of positive integers. Find the region IDs by using pdegplot with 'FaceLabels' (3-D) or 'EdgeLabels' (2-D) set to 'on'.

Data Types: double

Vectorized function evaluation, specified as 'off' or 'on'. This evaluation applies when you pass a function handle as an argument. To save time in the function handle evaluation, specify 'on', assuming that your function handle computes in a vectorized fashion. See Vectorization. For details on this evaluation, see Nonconstant Boundary Conditions.

Data Types: char | string

Enforced displacement, specified as a numeric vector or function handle. The numeric vector must contain two elements for a 2-D model and three elements for a 3-D model. The function must return a two-row matrix for a 2-D model and a three-row matrix for a 3-D model. Each column of the matrix must correspond to the enforced displacement vector at the boundary coordinates provided by the solver.

Data Types: double | function_handle

x-component of the enforced displacement, specified as a number or function handle. The function must return a row vector. Each column of the vector must correspond to the value of the x-component of the enforced displacement at the boundary coordinates provided by the solver.

For axisymmetric models, this property contains the radial component (r-component) of the enforced displacement.

Data Types: double | function_handle

y-component of the enforced displacement, specified as a number or function handle. The function must return a row vector. Each column of the vector must correspond to the value of the y-component of the enforced displacement at the boundary coordinates provided by the solver.

For axisymmetric models, this property contains the axial component (z-component) of the enforced displacement.

Data Types: double | function_handle

z-component of the enforced displacement, specified as a number or function handle. The function must return a row vector. Each column of the vector must correspond to the value of the z-component of the enforced displacement at the boundary coordinates provided by the solver.

Data Types: double | function_handle

Standard structural boundary constraints, specified as 'free','fixed','roller', 'symmetric', or 'multipoint'.

Data Types: char

Radius of a circle (for a 2-D geometry) or a sphere (for a 3-D geometry) around the reference point location for the multipoint constraint, specified as a positive number.

Data Types: double

Reference point location for the multipoint constraint, specified as a 2-by-1 (for a 2-D geometry) or 3-by-1 (for a 3-D geometry) numeric vector.

Data Types: double

Concentrated force at a vertex, specified as a numeric vector or function handle.

Data Types: double | function_handle

Normal and tangential distributed forces on the boundary (in the global Cartesian coordinates system), specified as a numeric vector or function handle. The numeric vector must contain two elements for a 2-D model and three elements for a 3-D model. The function must return a two-row matrix for a 2-D model and a three-row matrix for a 3-D model. Each column of the matrix must correspond to the surface traction vector at the boundary coordinates provided by the solver.

Data Types: double | function_handle

Pressure normal to the boundary, specified as a number or function handle. The function must return a row vector in which each column corresponds to the value of pressure at the boundary coordinates provided by the solver. A positive value of pressure acts in the direction of the outward normal to the boundary.

Data Types: double | function_handle

Distributed spring stiffness for each translational direction used to model an elastic foundation, specified as a numeric vector or function handle. The numeric vector must contain two elements for a 2-D model and three elements for a 3-D model. The custom function must return a two-row matrix for a 2-D model and a three-row matrix for a 3-D model. Each column of this matrix corresponds to the stiffness vector at the boundary coordinates provided by the solver.

Data Types: double | function_handle

Start time for a displacement component, the pressure, or the concentrated force load, specified as a nonnegative number.

Data Types: double

End time for a displacement component, the pressure, or the concentrated force load, specified as a nonnegative number.

Data Types: double

Rise time for a displacement component, the pressure, or the concentrated force load, specified as a nonnegative number.

Data Types: double

Fall time for a displacement component, the pressure, or the concentrated force load, specified as a nonnegative number.

Data Types: double

Frequency of a sinusoidal displacement component, the sinusoidal pressure, or the concentrated force, specified as a positive number, in radians per unit of time.

Data Types: double

Phase of a sinusoidal displacement component, the sinusoidal pressure, or the concentrated force, specified as a nonnegative number, in radians per unit of time.

Data Types: double

Label for use with linearizeInput, specified as a character vector or a string.

Data Types: char | string