findStructuralProperties

Find structural material properties assigned to geometric region

Syntax

smpa = findStructuralProperties(structuralmodel.MaterialProperties,RegionType,RegionID)

Description

smpa = findStructuralProperties(structuralmodel.MaterialProperties,RegionType,RegionID) returns the structural material properties assigned to the specified region. Structural properties include the Young's modulus, Poisson's ratio, and mass density of the material.

Examples

Find Young's Modulus and Poisson's Ratio

Find Young's modulus and Poisson's ratio for cells of a 3-D geometry.

Create a structural model.

structuralmodel = createpde('structural','static-solid');

Create the geometry consisting of three stacked cylinders and include it in the model. Plot the geometry.

gm = multicylinder(10,[1 2 3],'ZOffset',[0 1 3]);
structuralmodel.Geometry = gm;
pdegplot(structuralmodel,'CellLabels','on','FaceAlpha',0.5)

Assign different values of the Young's modulus and Poisson's ratio to each cell.

structuralProperties(structuralmodel,'Cell',1,'YoungsModulus',200E9, ...
                                              'PoissonsRatio',0.3);
structuralProperties(structuralmodel,'Cell',2,'YoungsModulus',210E9, ...
                                              'PoissonsRatio',0.3);
structuralProperties(structuralmodel,'Cell',3,'YoungsModulus',110E9, ...
                                              'PoissonsRatio',0.35);

Check the structural properties specification for cell 1.

mC1 = findStructuralProperties(structuralmodel.MaterialProperties,'Cell',1)

mC1 = 
  StructuralMaterialAssignment with properties:

       RegionType: 'Cell'
         RegionID: 1
    YoungsModulus: 2.0000e+11
    PoissonsRatio: 0.3000
      MassDensity: []
              CTE: []

Check the structural properties specification for cells 2 and 3.

mC23 = findStructuralProperties(structuralmodel.MaterialProperties,'Cell',[2,3]);
mC2 = mC23(1)

mC2 = 
  StructuralMaterialAssignment with properties:

       RegionType: 'Cell'
         RegionID: 2
    YoungsModulus: 2.1000e+11
    PoissonsRatio: 0.3000
      MassDensity: []
              CTE: []

mC3 = mC23(2)

mC3 = 
  StructuralMaterialAssignment with properties:

       RegionType: 'Cell'
         RegionID: 3
    YoungsModulus: 1.1000e+11
    PoissonsRatio: 0.3500
      MassDensity: []
              CTE: []

Input Arguments

structuralmodel.MaterialProperties — Material properties

MaterialProperties property of StructuralModel object

Material properties of the model, specified as the MaterialProperties property of a StructuralModel object.

Example: structuralmodel.MaterialProperties

RegionType — Geometric region type

'Face' for a 2-D model | 'Cell' for a 3-D model

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

Example: findStructuralProperties(structuralmodel.MaterialProperties,'Cell',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 using pdegplot, as shown in Create Geometry and Remove Face Boundaries or STL File Import.

Example: findStructuralProperties(structuralmodel.MaterialProperties,'Face',1:3)

Data Types: double

Output Arguments

smpa — Material properties assignment

StructuralMaterialAssignment object

Material properties assignment, returned as a StructuralMaterialAssignment object. For details, see StructuralMaterialAssignment Properties.