bolt (solid)

Realization Details

Solid Type


Figure 1. Pattern 1: Tapered Bolt


Figure 2. Pattern 2: Tapered Bolt with Washer


Figure 3. Pattern 3: Straight Bolt


Figure 4. Pattern 4: Straight Bolt with Washer


Figure 5. Pattern 5: Double Sided Bolt
D1
Diameter of the bolt head
D2
Input
A manually defined diameter of the bolt shaft
Auto
The connector will automatically take the diameter of the smallest hole and set it as the diameter of the bolt shaft.
D3 (Patterns 1, 2, and 5 Only)
The diameter of the tapered section of the bolt (pattern 1 and 2), or the diameter of the double-sided bolt (pattern 5)
D4 (Patterns 2 and 4 Only)
Diameter of the washer
L1
Length of the bolt head, excludes the thickness of the washer
L2
Length of the main section of the shaft of the bolt
L3
Transition zone between the tapered section of the shaft of the bolt and the main shaft of the bolt
L4 (Patterns 1 and 2 Only)
The length of the tapered section of the bolt (patterns 1 and 2), or the length of the double-sided bolt (pattern 5)
L5
The position of the pretension section
T (Patterns 2 and 4 Only)
The thickness of the washer
Mesh Type
Use this option to change between a Hex or a Tet Mesh for the bolt.
Mesh Size
Use this option to define the mesh size down the length of the bolt.
Pretension
An optional parameter that will create a pretension section
The position of the pretension section can be controlled by the parameter L5.
Initial Stress
The initial pretension stress value
Failure (LS-DYNA Only)
This will create a layer of elements under the head of the bolt with hour glassing and a rupture material so the failure of the bolt can be modeled.


Figure 6.
Rupture Material
An optional selector that can be used to define an existing material for the failure elements. If left empty, a new material will be created for the realization.

Contact

Contact is created for all solver profiles automatically.
Explicit Solver Interfaces
For explicit solver interfaces (LS-DYNA and Radioss), there are no contact options. The entire bolt and links are placed into a contact set. The shaft of the bolt is tied into the last link.


Figure 7.


Figure 8.
Implicit Solver Interfaces
For the Implicit solver interfaces (OptiStruct and Abaqus), under the head of the bolt is modeled separately as a contact.


Figure 9.
The following options are available to control how the shaft of the bolt is contacted.
Shaft Contact Type: (OptiStruct/Abaqus Only)
Tied
A tied contact is created for the shaft of the bolt and the last link of the connector.


Figure 10.
Threaded (Solid Links Only)
Last Part
A contact patch will be created between the inner face of the solid hole and the face of the bolt shaft.


Figure 11.
Contact Length
Measured from the bottom of the bolt, the contact thread on the bolt will be the specified thread length.


Figure 12.