// Gmsh project created on Sat Nov 24 16:58:14 2018

// #1, isotropic material
// Material constants are arranged as:
// temperature density 
// E v
Physical Point("1 0 1
0 0
20 0.3
0 0
") = {};
// Material name: 1 -- MAT1


// #2, isotropic material
// Material constants are arranged as:
// temperature density 
// E v
Physical Point("2 0 1
0 0
500 0.1
0 0
") = {};
// Material name: 2 -- MAT2

// Typical 2D SG: Hexagonal Pack Microstructure ;

//Define fiber volume
//volume fraction = 0.6;
l = 1;

Point(1) = {-0.5, 0.866025, 0, 0.1};
Point(2) = {0.5, 0.866025, 0, 0.1};
Point(3) = {0.5, -0.866025, 0, 0.1};
Point(4) = {-0.5, -0.866025, 0, 0.1};
Point(5) = {-0.0933076, 0.866025, 0, 0.1};
Point(6) = {-0.5, 0.459333, 0, 0.1};
Point(7) = {0.0933076, 0.866025, 0, 0.1};
Point(8) = {0.5, 0.459333, 0, 0.1};
Point(9) = {0.5, -0.459333, 0, 0.1};
Point(10) = {0.0933076, -0.866025, 0, 0.1};
Point(11) = {-0.0933076, -0.866025, 0, 0.1};
Point(12) = {-0.5, -0.459333, 0, 0.1};
Point(13) = {0, 0, 0, 0.1};
Point(14) = {0, -0.406692, 0, 0.1};
Point(15) = {0.406692, 0, 0, 0.1};
Point(16) = {0, 0.406692, 0, 0.1};
Point(17) = {-0.406692, 0, 0, 0.1};
Line(3) = {2, 7}; 
Line(4) = {7, 5}; 
Line(5) = {5, 1}; 
Line(6) = {1, 6}; 
Line(7) = {6, 12}; 
Line(8) = {12, 4}; 
Line(9) = {4, 11}; 
Line(10) = {11, 10}; 
Line(11) = {10, 3}; 
Line(12) = {3, 9}; 
Line(13) = {9, 8}; 
Line(14) = {8, 2}; 
Circle(15) = {5, 1, 6}; 
Circle(16) = {12, 4, 11}; 
Circle(17) = {10, 3, 9}; 
Circle(18) = {8, 2, 7}; 
Circle(19) = {16, 13, 17}; 
Circle(20) = {17, 13, 14}; 
Circle(21) = {14, 13, 15}; 
Circle(22) = {15, 13, 16}; 
Line Loop(23) = {5, 6, -15}; 
Plane Surface(24) = {23}; 
Line Loop(25) = {3, -18, 14}; 
Plane Surface(26) = {25}; 
Line Loop(27) = {20, 21, 22, 19}; 
Plane Surface(28) = {27}; 
Line Loop(29) = { 8, 9, -16}; 
Plane Surface(30) = {29}; 
Line Loop(31) = { 11, 12, -17}; 
Plane Surface(32) = {31}; 
Line Loop(33) = {4, 15, 7, 16, 10, 17, 13, 18}; 
Plane Surface(34) = {33, 27}; 
Physical Surface(1) = { 24, 26, 28, 30, 32 }; 
Physical Surface(2) = { 34 }; 
Transfinite Line {6, 5, 4, 3, 14, 12, 11, 10, 9, 8} = 8 Using Progression 1; 
Transfinite Line {7, 13} = 20 Using Progression 1; 
Transfinite Line {15,16,17,18,19,20,21,22} = 10 Using Progression 1; 
Periodic Line {6} = {-14}; 
Periodic Line {7} = {-13}; 
Periodic Line {8} = {-12}; 
Periodic Line {3} = {-11}; 
Periodic Line {4} = {-10}; 
Periodic Line {5} = {-9};