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With Nut - Both holes tight fit |
With Nut - No tight fit |
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Without Nut - Both holes tight fit |
Without Nut - One hole tight fit |
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Defines a Bolt connector 
between two components or between a component and the ground.
A typical bolt component is shown in the figure.
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With Nut. Use this option to define a regular bolt with a nut.
Without Nut. Use this option to define a bolt without a nut.
Grounded. Use this option to connect a cylindrical face to the ground by a bolt.
Head/Nut contact
face 
. Click to select the contact faces. Use the
Split Line tool to create the
contact faces.
Head/Nut diameter
. Click to define the head and nut contact faces by selecting
an edge and specifying a diameter.
You define one bolt at a
time. Click Keep Visible 
to keep the PropertyManager open to define multiple bolts.
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Bolt Definition |
Bolt Type |
Options |
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Head/Nut contact face |
With nut |
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Without nut |
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Grounded |
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Head/Nut diameter |
With nut |
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Without nut |
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Grounded |
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Tight Fit. Check this option if the radius of the shank is equal to the radius of the cylindrical face(s) associated with at least one of the components. A cylindrical face set to Tight Fit is made rigid by the program and will only deform with the shank as a rigid body. The simulation depends on whether the bolt is with or without a nut as illustrated in this figure.
Shank contact
faces 
. Select cylindrical faces that are in contact
with the shank. The faces should belong to one or two components. If you
select multiple faces from a component, they should have the same axis
and radius.
Diameter 
. Set the units and value of the diameter of the shank.
The diameter value should be equal to or less than
the diameters of the Shank contact faces.
Show preview. Turns on/off the display of the bolt symbols as you define the bolt.
Custom. Define your own material properties.
Units 
. Select the
unit for defining the elastic modulus.
Elastic Modulus
. Sets a value for the elastic modulus.
Poisson's
Ratio 
. Sets a value for the Poisson's Ratio (dimensionless
quantity).
Thermal expansion
coefficient 
. Sets the value of the coefficient of
thermal expansion of the bolt's material.
Library. Select a material from a material library.
Select material. Click this button to open the Material dialog box and select a material from a material library. The name of the selected material appears next to Material.
The program does not maintain a link to the selected
library. It just reads the material properties at the time of selection.
If you edit the selected material in the library later on, the changes
are not reflected for the bolt.
Units . Select a system of units to define the preload in the bolt.
Axial 
. Select this option if the axial load on the bolt is known.
Usually a torque rather than axial load is known.
Torque 
. Select this option if the torque used to tighten the bolt
is known.
Friction
Factor (K) 
. The program uses this factor to calculate
the axial force from a given torque.
In order to complete the definition of the bolt connector, you may need to define a contact condition to prevent interference as illustrated in the figure below.
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Define contact between these two faces. You can define a global, component, or a local contact. |
You do not need to define contact when the faces are not initially contacting and do not come into contact during loading. |
. Select one or more faces to define the contact
area of the bolt head with a component.
. Select one or more faces to define the contact area
of the bolt nut with a component. The faces should belong to a component
different than the one that 
. Select a plane to model a virtual wall.
. Select an edge to define
the bolt head location.
. Set the units and value of the diameter of the bolt
head.
. Select an edge to define
the nut location.
.Set the units and value of the diameter of the nut.
