# ResultInternalForce2DEdge¶

**Internal force on 2D edge**

Internal forces on edge of 2D member. The coordinate system of the results is the coordinate system of the member the results belong to.

## Specification in the excel¶

Column Header |
Data Type |
Example / enum definition |
Required |
Description |
---|---|---|---|---|

Result on |
Enum |
On edge |
yes |
Specify where the result is, only option is ‘on edge’. Prepared for future expansion (on opening edge..) |

2D member |
String |
B1 |
yes |
Reference to the name of 2D member in StructuralSurfaceMember |

Edge |
Integer |
2 |
yes |
The index starting with 1. The order is according to order of “edges” property in StructuralSurfaceMember |

Result for |
Enum |
Load case |
yes |
Specifies from where the result is coming from (from Load Case, Load Combination) |

Load case |
String |
LC1 |
yes, if Result for = Load case |
Reference to the name of StructuralLoadCase |

Load combination |
String |
COM1 |
yes, if Result for = Combination |
Reference to the name of StructuralLoadCombination |

Combination key |
String |
1.35*LC1+1.5*LC2+1.5*LC3+1.5*LC4 |
no |
Allows to define exact combination per result section |

Section at [m] |
Double |
0.100 |
yes |
X coordinate on the edge(distance from the start node) where the result is located |

Index |
Integer |
1 |
yes |
Index of the section on edge |

mx [kNm/m] |
Double |
3.00 |
yes |
Result value of bending moment mx |

my [kNm/m] |
Double |
3.00 |
yes |
Result value of bending moment my |

mxy [kNm/m] |
Double |
3.00 |
yes |
Result value of torsion moment mxy |

vx [kN/m] |
Double |
3.00 |
yes |
Result value of shear force vx |

vy [kN/m] |
Double |
3.00 |
yes |
Result value of shear force vy |

nx [kN/m] |
Double |
3.00 |
yes |
Result value of membrane force nx |

ny [kN/m] |
Double |
3.00 |
yes |
Result value of membrane force ny |

nxy [kN/m] |
Double |
3.00 |
yes |
Result value of shear force nxy |

## Notes¶

### Index¶

This attribute defines an order of the section on the edge, starting with 1 and increasing from the **start** to the **end** of the edge. This property helps to specify if the internal force is on the “left” or on the right side of the section.

See example on a beam below:

Hint

See index 6 and 7. One section, two values for normal (N) force.

Section with lower index (6) identifies value on the left (closer to the origin of X-axis of the beam).

Section with a higher index (7) identifies value on the right (further from the origin of X-axis of the beam).