TH_DASH_DASHREPLACE_WITH_DASH_DASH
        function this = setCteParams(this,int)
            if (this.auto_stiff)
                if (~isempty(int.cforcen))
                    % Assumption: average poisson ratio
                    this.stiff = (1-int.avg_poisson)/(1-int.avg_poisson/2) * int.cforcen.stiff;
                else
                    this.stiff = 0;
                end
            end
        end
        
        %REPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_DASH_DASHREPLACE_WITH_