# Access Hole Model \[CSB]

The Access Hole Model workflow item is used to define the geometry and finite element model of a bottom flange access hole plate. Access holes are cutouts in the bottom flange plate that provide access for inspection and maintenance.

## General

**Plate Length:** The length of the bottom flange plate.

**Plate Width:** The width of the bottom flange plate.

**Plate Thickness:** The thickness of the bottom flange plate.

**Plate Material:** Assign a material to the plate. Materials can be selected from previously defined options or imported as needed.

**Mesh Size:** The mesh size specifies the maximum element size for the finite element mesh of the plate.

**Mesh Option \[MeshAdapt/Automatic/Initial mesh only/Delaunay/Frontal-Delaunay/BAMG/Frontal-Delaunay for Quads/Packing of Parallelograms/Quasi-structured Quad]:** Specify the meshing algorithm used for the finite element mesh generation.

**Plate Chamfer (Length Direction):** The chamfer dimension at each corner of the plate in the length direction. A value of 0 results in a rectangular corner.

**Plate Chamfer (Width Direction):** The chamfer dimension at each corner of the plate in the width direction. A value of 0 results in a rectangular corner.

## Access Holes

**Access Holes:** Define the access hole cutouts in the plate. Multiple access holes can be added. Each access hole is defined by the following parameters:

* **Access Hole Shape \[Circle/Rectangle]:** Specify the shape of the cutout.
* **Hole Diameter:** The diameter of the circular cutout. Applicable when the shape is set to "Circle".
* **Circle Segment:** The number of segments used to approximate the circle. Applicable when the shape is set to "Circle".
* **Access Hole Length:** The length of the rectangular cutout. Applicable when the shape is set to "Rectangle".
* **Access Hole Width:** The width of the rectangular cutout. Applicable when the shape is set to "Rectangle".
* **Corner Radius:** The corner radius for the rectangular cutout. Applicable when the shape is set to "Rectangle".
* **Hole Offset X:** The offset of the hole center from the plate center in the length direction.
* **Hole Offset Y:** The offset of the hole center from the plate center in the width direction.

## Left Edge Boundary Conditions

**Tx \[Free/Fixed/Stiffness Value]:** Translational stiffness along the X direction at the left edge.

**Ty \[Free/Fixed/Stiffness Value]:** Translational stiffness along the Y direction at the left edge.

**Tz \[Free/Fixed/Stiffness Value]:** Translational stiffness along the Z direction at the left edge.

**Rx \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the X axis at the left edge.

**Ry \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the Y axis at the left edge.

**Rz \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the Z axis at the left edge.

## Right Edge Boundary Conditions

**Tx \[Free/Fixed/Stiffness Value]:** Translational stiffness along the X direction at the right edge.

**Ty \[Free/Fixed/Stiffness Value]:** Translational stiffness along the Y direction at the right edge.

**Tz \[Free/Fixed/Stiffness Value]:** Translational stiffness along the Z direction at the right edge.

**Rx \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the X axis at the right edge.

**Ry \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the Y axis at the right edge.

**Rz \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the Z axis at the right edge.

## Top Edge Boundary Conditions

**Tx \[Free/Fixed/Stiffness Value]:** Translational stiffness along the X direction at the top edge.

**Ty \[Free/Fixed/Stiffness Value]:** Translational stiffness along the Y direction at the top edge.

**Tz \[Free/Fixed/Stiffness Value]:** Translational stiffness along the Z direction at the top edge.

**Rx \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the X axis at the top edge.

**Ry \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the Y axis at the top edge.

**Rz \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the Z axis at the top edge.

## Bottom Edge Boundary Conditions

**Tx \[Free/Fixed/Stiffness Value]:** Translational stiffness along the X direction at the bottom edge.

**Ty \[Free/Fixed/Stiffness Value]:** Translational stiffness along the Y direction at the bottom edge.

**Tz \[Free/Fixed/Stiffness Value]:** Translational stiffness along the Z direction at the bottom edge.

**Rx \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the X axis at the bottom edge.

**Ry \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the Y axis at the bottom edge.

**Rz \[Free/Fixed/Stiffness Value]:** Rotational stiffness about the Z axis at the bottom edge.