oad stiffness coefficient parameter
        residue      double = double.empty;   % residual overlap
    end
    
    %% Constructor method
    methods
        function this = ContactForceN_ElastoPlasticLinear()
            this = this@ContactForceN(ContactForceN.ELASTOPLASTIC_LINEAR);
            this = this.setDefaultProps();
        end
    end
    
    %% Public methods: implementation of super-class declarations
    methods
        %REPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPL