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Assembly
Summary of available functionality for defining the properties and behavior of parts in the model.
Materials
Apply Materials to Welds
Apply material properties to welds in the assembly.

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View new features for SimSolid 2026.
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Interface with External Products
Interfaces that support SimSolid output file format.
Geometry
Information about treatment and properties of geometric entities in SimSolid.
Assembly
Summary of available functionality for defining the properties and behavior of parts in the model.
- Materials
  - Apply Materials to Entire Assembly
    Apply material properties to your assembly.
  - Apply Materials to Specific Parts
    Apply material properties to specific parts in the assembly.
  - Apply Materials to Welds
    Apply material properties to welds in the assembly.
  - View Material Assignment
    Check the materials assigned to parts in your assembly.
- Rigid Parts
  A rigid part is defined as a component that can undergo displacement and rotation under applied loads, but without any internal deformation or strain. Rigid parts behave as a perfectly stiff body where all points maintain their relative positions.
- Spots
  A Spots is a feature that enable applying loads, constraints, or other boundary conditions (BC) to local regions on the surface, instead of applying BC to the whole faces of the model
- Create Coordinate System
  Define a local coordinate system to which boundary conditions may be later applied.
- Import Coordinate System
  Import coordinate system from an external comma separated values (CSV) file. Multiple coordinates can be imported at once.
- Create Line on Part
  Create a line that can later be used to generate seam welds.
- Create Sheets
  Create a sheet from an imported surface by applying thickness.
- Create Laminates
  Create laminate from an imported skin
- Set Part Type as Bolt
  Define parts as bolts.
- Set Part Type as Protruded
  Define parts as protruded.
- Replace Part
  Replace a part in an existing assembly with an alternative design.
- Set Orthotropic Material Geometry
  Define the material orientation of the part.
- Create Datum Plane
  Create a Datum plane to use them as a clipping plane or to review the results along a cut-section.
- Import Datum Points from CSV
  Import datum point sets from an external comma separated values (CSV) file.
- Create Liquid Body
  This function allows you to define a liquid body within your SimSolid model, representing the effects of an enclosed, inviscid, and incompressible fluid on your structure. It accounts for both the distributed mass and the stiffness contributions arising from the fluid's incompressibility.
- Create Gas Body
  Allows you to define and simulate a gas body at a certain pressure within a confined space, particularly for applications like Insulated Glass Units (IGUs)
- Assembly Review
  You can clean up the geometry in your model by removing undesired parts.
Connections
Connections are used to define the association of different regions of interest between parts in an assembly.
Create Analysis
Create an analysis for your project.
Boundary Conditions
Boundary Conditions available for SimSolid.
Post Processing
Run analyses and view a variety of results in SimSolid.
Design Study
Design studies allow you to quickly evaluate and compare the structural performance from different design scenarios.
Verification Problems
Solved verification models.
Frequently Asked Questions
This section provides quick responses to typical and frequently asked questions regarding

Apply Materials to Welds

Apply material properties to welds in the assembly.

In the Project Tree, open the Connections workbench.
Choose from the following:
- In the Connections workbench toolbar, select Seam welds > Apply material to seam welds.
- In the Connections workbench toolbar, select Spot or laser welds > Apply material to spot welds.
Select a material from the current project or from the material database section in the material tree.
If you selected the current project, only the materials available in the current project are listed. The list is empty if there are no materials assigned to parts. The properties of the selected material will fill the fields in the dialog.
Apply the material to all welds or selected welds.
Note:
- Seam weld material assignment affects all analysis types. If you do not assign materials to seam welds, automatic assignment occurs when an analysis is solved, based on what parts are connected to the weld. If parts with multiple materials are connected, the stiffer material is assigned to the weld.
- Spot weld material assignment only affects fatigue simulations. For all structural analyses, automatic assignment occurs when an analysis is solved, based on what parts are connected to the weld. If parts with multiple materials are connected, the stiffer material is assigned to the weld.