## B. ATILA Finite Element Library

### 1. Notations

Cat.: Category. PE: Available for Plane-stress class.

B: Bulkelement. PA: Available for Plane-strain class.

P: Plateelement. AXI: Available for Axisymmetry class.

Sh: Sh cellelement. PRO: Available for Propagation class.

Sp: Springelement.

F: Thinfilmelement.

T: Trilaminarelement.

### 2. Shape Memory Material

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
Sp | Linear Linear | 2 2 | SPRI02AM SPRI02AS | 101 102 | Sp | Linear Linear | 2 2 | SPRI02AM SPRI02AS | 101 102 |  | x | x |

### 3. Composite

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
B | Hexahedral | 20 | HEXA20C | 103 | B | Quadrilateral | 8 | QUAD08C | 106 |  |  | x |
Sh | Quadrilateral Triangular | 8 6 | SHEL08C SHEL06C | 105 105 |  |  |  |  |  |  |  |  |

### 4. Elastic

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
B | Hexahedral Prismatic Pyramidal Tetrahedral | 20 15 13 10 | HEXA20E PRIS15E PYRA13E TETR10E | 107 107 107 107 | B | Quadrilateral Triangular | 8 6 | QUAD08E TRIA06E | 112 112 | x | x | x | x
P | Quadrilateral Triangular | 8 6 | PLAT08E PLAT06E | 108 108 | Sh | Linear | 3 | SHEL03E | 113 |  |  | x |
Sh | Quadrilateral | 8 | FACE08E | 109 | Sp | Linear | 2 | SPRI02E | 110 |  | x | x |
Sp | Linear | 2 | SPRI02E | 110 |  |  |  |  |  |  |  |  |

### 5. Electrostrictive

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
B | Hexahedral Prismatic Pyramidal Tetrahedral | 20 15 13 10 | HEXA20ES PRIS15ES PYRA13ES TETR10ES | 114 114 114 114 | B | Quadrilateral Triangular | 8 6 | QUAD08ES TRIA06ES | 115 115 |  | x | x |

### 6. Fluid

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
B | Hexahedral Prismatic Pyramidal Tetrahedral | 20 15 13 10 | HEXA20F PRIS15F PYRA13F TETR10F | 117 117 117 117 | B | Quadrilateral Triangular | 8 6 | QUAD08F TRIA06F | 118 118 |  | x | x |

### 7. Magnetic

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
B | Hexahedral Prismatic Pyramidal Tetrahedral | 20 15 13 10 | HEXA20G PRIS15G PYRA13G TETR10G | 119 119 119 119 | B | Quadrilateral Triangular | 8 6 | QUAD08G TRIA06G | 120 120 |  | x | x |

### 8. Interface

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
| Quadrilateral Triangular | 16 12 | QUAD16I TRIA12I | 121 121 |  | Linear | 6 | LINE06I | 122 |  | x | x | x

### 9. Electrostrictive

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
B | Hexahedral Prismatic Pyramidal Tetrahedral | 20 15 13 10 | HEXA20M PRIS15M PYRA13M TETR10M | 123 123 123 123 | B | Quadrilateral Triangular | 8 6 | QUAD08M TRIA06M | 126 126 |  | x | x |
F | Quadrilateral | 16 | QUAD16M | 124 |  |  |  |  |  |  |  |  |

### 10. Piezoelectric

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
B | Hexahedral Prismatic Pyramidal Tetrahedral | 20 15 13 10 | HEXA20P PRIS15P PYRA13P TETR10P | 127 127 127 127 | B | Quadrilateral Triangular | 8 6 | QUAD08P TRIA06P | 129 129 |  | x | x |
T | Quadrilateral Triangular | 8 6 | TRIL08P TRIL06P | 128 128 |  |  |  |  |  |  |  |  |

### 11. Dampers (Radiating)

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
| Quadrilateral Triangular | 8 6 | QUAD08R TRIA06R | 131 131 |  | Linear | 3 | LINE03R | 132 |  | x | x |

### 12. Coupling FEM-BEM

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
| Quadrilateral Triangular | 8 6 | QUAD08Z TRIA06Z | 133 133 |  | Linear | 3 | LINE03Z | 135 |  |  | x |

### 13. Mechanical Local Impedance

3D elements | 2D elements
Cat. | Shape | #of nodes | Name | Page | Cat. | Shape | #of nodes | Name | Page | PE | PA | AXI | PRO
| Quadrilateral Triangular | 8 6 | QUAD08Z TRIA06Z | 133 133 |  | Linear | 3 | LINE03Z | 135 |  |  | x |