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Assembly
Summary of available functionality for defining the properties and behavior of parts in the model.
Rigid Parts
A rigid part can displace under the loading, but only as a rigid body, i.e. without deformation or strain.
Set Rigid Parts
Declare parts of the model absolutely rigid.

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View new features for SimSolid 2025.1.
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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
- Rigid Parts
  A rigid part can displace under the loading, but only as a rigid body, i.e. without deformation or strain.
  - Set Rigid Parts
    Declare parts of the model absolutely rigid.
- 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
  Create a liquid body between selected faces.
- Create Gas Body
  Create gas body between selected faces.
- 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

Set Rigid Parts

Declare parts of the model absolutely rigid.

In the Project Tree, open the Assembly workbench.
In the Assembly workbench toolbar, click Set part rigid > Select rigid parts.
1. In the modeling window or the Project Tree, select parts of the assembly.
2. Under Apply mass or density, select units for Mass and Density.
To set rigid parts via a .csv file, click Set part rigid > Select rigid parts by file import.
1. Click on Import from .csv.
2. Browse to the desired .csv file in the File Explorer and click Open.
3. Click OK.
Optional: Delete can be used to delete single/multiple rows from the dialog
Optional: In the drop-down menu, specify desired mass units.

Set Rigid Parts CSV File Format

CSV file format fields

The CSV file contains one header row and one or more additional data rows. Data values are as follows:

Part_name – Alpha-numerical values
Mass - Numerical values

Example CSV file

Part_name,mass
Support,10
Handle,20

Note: Partial part names are also supported. For example, if an assembly has multiple parts that have support in the name of parts (such as support_left, support_right) all those instances where support is present are recognized. Defining individual names support_left and support_right separately in a CSV file with different mass value will map correctly as per the names defined.