Interference Check dialog box

Use the Interference Check dialog box to check your model for areas where 2D and 3D elements interfere with each other.

Interference Set
Set Name	Lets you specify a name for the set of objects to check for intersection or penetration issues.
Selection Type	Available when you use the Interference Check command with a Simulation file active.Lets you specify the type of objects that you want to select to check for interference.Select Meshes to check for interference issues between selected meshes.Select Contact Definitions to check for interference issues between selected contact simulation objects. You can select a contact definition in the graphics window or in the Simulation Navigator.For information on detecting interference between contact definitions in LS-DYNA models, see Contact interference in LS-DYNA models.
Select Objects	Lets you select meshes, mesh collectors, or contact definitions to check for interference or penetration.
Stacked Smart Selector Methods	Opens the Smart Selector Methods dialog box where you can specify a progression of smart selection filters.For more information, see Smart Selector Methods dialog box.
Options
Interference Between	Controls where the software checks for interference issues.Select Meshes to have the software check for interference between the meshes that you select.Select Mesh Collectors to have the software check for interference between all meshes that are contained in the selected mesh collectors.
Interference Type	Controls the type or types of interference conditions that the software checks for.Select All to have the software check for penetration and intersections.Select Intersections to identify two or more elements physically intersect (cross) each other.Select Penetrations to identify locations when two or more elements interfere within their defined element thickness values.
Thickness Source	Lets you specify the source of the thickness data that you want to apply to the elements during the interference check. In some cases, elements may not physically interfere with each other until that thickness data is applied.Select Element Associated Data to use the thickness value that is specified with the element or mesh associated data for the selected mesh, mesh collector, or contact definition.Select User Defined to specify a thickness value to apply to all elements in the selected meshes, mesh collector, or contact definition.
Thickness	Available if Thickness Source is set to User Defined.Lets you specify a thickness value to apply to the selected elements.
Thickness Factor	Lets you specify a scale factor to apply to the elements' thickness value. You can specify a value between 0.1 and 3. For example, if the thickness for the elements is 10mm and you specify a Thickness Factor of 0.8, then the software applies a thickness value of 8mm during the interference check calculations.
Shell Element Boundary Treatment	Lets you control how Pre/Post treats element edges on the outer boundary of the part during the interference computations. This setting is particularly important for models that include T-type intersections.Select Sharp Edges to have the software treat the shell element edges as sharp edges.Select Rounded Edges to have the software treat the shell element edges as rounded. Certain explicit solvers, such as LS-DYNA or Radioss, use rounded edges on the shell elements that lie on the outer boundary of a model. Rounded edges help smooth forces between contact segments.	Select Sharp Edges to have the software treat the shell element edges as sharp edges.		Select Rounded Edges to have the software treat the shell element edges as rounded. Certain explicit solvers, such as LS-DYNA or Radioss, use rounded edges on the shell elements that lie on the outer boundary of a model. Rounded edges help smooth forces between contact segments.
Select Sharp Edges to have the software treat the shell element edges as sharp edges.
Select Rounded Edges to have the software treat the shell element edges as rounded. Certain explicit solvers, such as LS-DYNA or Radioss, use rounded edges on the shell elements that lie on the outer boundary of a model. Rounded edges help smooth forces between contact segments.
Include Self Interference	Controls whether the software checks if elements that are assigned to the same mesh collector penetrate or intersect each other.

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Detecting interference and clearance issues between meshes

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Interference Check dialog box, Simcenter 3D 2021.1 Series

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