! [File: Element_node_order.txt] ! ! 1-D Elements ----------------------------------- ! The active C_0 Lagrangian Line elements in MODEL ! are the linear L2, quadratic L3, and cubic L4 ! elements. Their nodes are input in the order: ! 1---2 for L2, 1---2---3 for L3, and 1---2---3---4 ! for the L4. (A subroutine of a line, quadrilateral, ! or hexahedron or variable degree on all edges is ! available.) ! ! 2-D Elements ----------------------------------- ! 3 The active C_0 triangles in MODEL are the ! | \ linear T3, quadratic T6, and quartic ! | \ T15. Their nodes are input in the ! 6 11 order shown to the left. ! | \ ! 9 15 8 3 ! | \ | \ ! 12 13 14 5 6 5 3 ! | \ | \ | \ ! 1---4--7---10---2 1--4---2 1--2 ! ! 3 The active C_0 cubic T10 triangle nodes are ! | \ numbered as shown here. ! | \ ! 6 8 ! | \ ! 9 10 5 ! | \ ! 1---4---7----2 ! ! 4----7----3 The active C_0 quadrilaterals in MODEL ! | | include the Serendipity Q4 and Q8, and ! 8 9 6 the Lagrangian Q9. Their nodes are input ! | | in the order shown to the left. ! 1----5----2 ! ! 4--11---7---3 The active Serendipity Q12 elements ! I I have nodes input in the order shown ! 8 S 10 to the left. ! I .R I ! 12 6 ! I I ! 1---5---9---2 ! ! 4--11---7---3 The active Lagrangian Q16 elements ! I S I have nodes input in the order shown ! 8 16 . 15 10 to the left. ! I ..R I ! 12 13 14 6 ! I I ! 1---5---9---2 ! ! 4--15--11---7---3 The active Serendipity Q16S and Q17 ! | | elements have nodes input in the ! 8 14 order shown to the left. ! | | ! 12 17 10 The Q16S is not recommended since ! | | it has a lower degree complete ! 16 6 polynomial. ! | | ! 1---5---9--13---2 ! ! 3-D Elements -------------------------------------------- ! R 2 *---------* 6 The active Serendipity H8 ! | / . /| elements have nodes input ! | / . / | in the order shown to the ! *---T / . / | left. ! / / . / | ! / / . / | ! S / 1*.../.....* 5 ! / . / / ! 3 *---------*7 / ! | . | / ! | . | / ! | . | / ! | . | / ! |. |/ ! 4 *---------* 8 ! ! T 3 *----*----* 2 The active Serendipity H20 ! | / . 10 /| brick elements have nodes ! | / . / | input in the order shown to ! *---S / *19 / *18 the left. ! / 11* . 9* | ! / / . / | ! R / 7*.../*....* 6 ! / 12 . /14 / ! 4 *----*----*1 / ! | . | / ! | *15 | *13 ! 20 * . 17* / ! | . | / ! |. 16 |/ ! 8 *----*----* 5 ! ! 3 * The active linear 4 node pyramid ! /. \ (tetheradon) elements have nodes ! / . \ input in the order shown to the ! / . \ left. ! / . \ | T ! / 1*.......* 2 | ! / . / *----- S ! / . / / ! /. / / ! 4 * R