MATLAB Object-Oriented Programming

Data Description

Material char vector identifying the type of material tested

SampleNumber Number of a particular test sample

Stress Vector of numbers representing the stress applied to

the sample during the test.

Strain Vector of numbers representing the strain at the

corresponding values of the applied stress.

Modulus Number defining an elastic modulus of the material

under test, which is calculated from the stress and

strain data

The TensileData Class

This example begins with a simple implementation of the class and builds on this

implementation to illustrate how features enhance the usefulness of the class.

The first version of the class provides only data storage. The class defines a property for

each of the required data elements.

classdef TensileData

properties

Material

SampleNumber

Stress

Strain

Modulus

end

end

Create an Instance and Assign Data

The following statements create a TensileData object and assign data to it:

td = TensileData;

td.Material = 'Carbon Steel';

td.SampleNumber = 001;

td.Stress = [2e4 4e4 6e4 8e4];

td.Strain = [.12 .20 .31 .40];

td.Modulus = mean(td.Stress./td.Strain);

3 MATLAB Classes Overview