A contact solid is used to define certain contact properties between two surfaces. This object is defined in a slightly different way in RFEM 5 and RFEM 6.
RFEM 5
The Main tab of the solid dialog box describes the following parameters:
- Solid type: "Contact"
- Boundary surfaces of the solid
- Material of the solid
The Contact tab manages the following information:
- Surfaces A and B, between which the contact properties are effective
- Properties of the contact perpendicular to both surfaces (full force transmission, failure under compression or tension)
- Properties of the contact parallel to both surfaces (full force transmission, failure if contact perpendicular to surfaces failed, rigid or elastic friction with or without limit, elastic solid behavior)
RFEM 6
The Main tab of the solid dialog box describes the following parameters:
- Solid type: "Contact"
- Boundary surfaces of the solid
- Material of the solid
- Surfaces 1 and 2, between which the contact properties are effective
In the Contact tab, you can assign the properties of the contact solid in the form of a type. If no type has yet been created, it can be defined in a new dialog box using the
button.
This dialog box manages the following information:
- Properties of the contact perpendicular to both surfaces (full force transmission, failure under compression or tension)
- Properties of the contact parallel to both surfaces (full force transmission, failure if contact perpendicular to surfaces failed, rigid or elastic friction with or without limit, elastic solid behavior)
Conditions for Contact Solids
The following conditions must be met for the definition of a contact solid:
- Two contact surfaces must be parallel to each other and have the same dimensions.
- Both contact surfaces must have the same integrated elements, such as nodes and lines, at the same height.
- Each lateral connecting surface must consist of four boundary lines.
