Material Class

This is a class in the Object Oriented Programming (OOP) paradigm that defines material objects in the LESM (Linear Elements Structure Model) program.

All materials in LESM are considered to have linear elastic bahavior. In adition, homogeneous and isotropic properties are also considered, that is, all materials have the same properties at every point and in all directions.

Contents

Class definition

Definition of super-class Material as a handle class.

classdef Material < handle

Public attributes

    properties (SetAccess = public, GetAccess = public)
        id = 0;           % identification number
        elasticity = 0;   % elasticity modulus
        poisson = 0;      % poisson ratio
        shear = 0;        % shear modulus
        thermExp = 0;     % thermal expansion coefficient
    end

Constructor method

    methods
 
        %------------------------------------------------------------------
        function material = Material(id,e,v,te)
            if (nargin > 0)
                material.id = id;
                material.elasticity = e;
                material.poisson = v;
                material.shear = e / (2 * (1 + v));
                material.thermExp = te;
            end
        end
    end

Public methods

    methods
 
        %------------------------------------------------------------------
        % Cleans data structure of a Material object.
        function clean(material)
            material.id = 0;
            material.elasticity = 0;
            material.poisson = 0;
            material.shear = 0;
            material.thermExp = 0;
        end
    end

end

Published with MATLAB® R2017a