Shear Panel Property
Description: Defines the properties of shear elements (CSHEAR entry).
Format:
Example:
| Field | Definition | Type | Default |
|---|---|---|---|
| PID | Property identification number. | Integer > 0 | Required |
| MID | Material identification number. | Integer > 0 | Required |
| T | Thickness of shear panel. | Real | Required |
| NSM | Nonstructural mass per unit area. | Real | 0.0 |
| F1 | Effectiveness factor for extensional stiffness along edge 1-2. See Remark 3. | Real ≥ 0.0 | 0.0 |
| F2 | Effectiveness factor for extensional stiffness along edge 2-3. See Remark 3. | Real ≥ 0.0 | 0.0 |
| F3 | Effectiveness factor for extensional stiffness along edge 3-4. See Remark 3. | Real ≥ 0.0 | F1 |
| F4 | Effectiveness factor for extensional stiffness along edge 4-1. See Remark 3. | Real ≥ 0.0 | F2 |
Remarks:
- All PSHEAR entries must have unique identification numbers.
- PSHEAR entries may reference only MAT1 material entries when PARAM, SHEARELEMTYPE is set to NASTRAN.
- The effective extensional area is defined by means of equivalent rods on the perimeter of the element. If F1 ≤ 1.01, the area of the rod on edge 1-2 is set equal to (F1*T*PA)/(L12+L34) where PA is the panel surface area and L12, L34 are the lengths of sides 1-2 and 3-4. Thus, if F1 = F3 = 1.0, the panel is fully effective for extension in the 1-2 direction. If F1 > 1.01, the area of the rod on edge 1-2 is set equal to 0.5*F1*T2. In the case of an orthotropic material (MAT8) E1 will be used for F1 and F3 and E2 for F2 and F4.
- Poisson's ratio coupling for extensional effects is ignored.