updating_cover…

hertz.geo
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			cl1 = 0.0075;
			cl2 = 0.005;
			cl3 = 0.005;
			Dy = 0.0;
			radius = 0.1;
			y = 0.1;
			epsilon = 1e-3;

			nb_points = 51;

			Point(1) = {0, y, 0, 0.25*cl1};
			Point(2) = {radius, radius + y, 0, cl1};

			Point(4) = {0.2, y, 0, 0.5*cl1};
			Point(5) = {0, y, 0, 0.5*cl1};
			Point(6) = {0, 0.025, 0, 10*cl3};
			Point(7) = {0.2, 0.025, 0, 10*cl3};
			Point(8) = {0, radius + y, 0, cl1};

			Circle(2) = {1, 8, 2};

			Line(3) = {2, 8};
			Line(13) = {8, 1};
			Line(4) = {6, 7};
			Line(5) = {7, 4};
			Line(6) = {4, 5};
			Line(7) = {5, 6};

			Line Loop(9) = {2, 3, 13};
			Plane Surface(9) = {9};

			Line Loop(11) = {6, 7, 4, 5};
			Plane Surface(11) = {11};

			Physical Line("contact_bottom") = {6};
			Physical Line("contact_top") = {2};

			Physical Line("loading") = {3};
			Physical Line("fixed") = {4};

			Physical Surface("upper") = {9};
			Physical Surface("lower") = {11};

			Physical Line("sides") = {5};

			Physical Line("symmetry") = {13, 7};
			Recombine Surface "*";