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Modal
Modal analysis evaluates the frequencies and corresponding modes of vibration of your model.
Prestressed

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View new features for SimSolid 2026.
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Summary of available functionality for defining the properties and behavior of parts in the model.
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- Structural
- Modal
  Modal analysis evaluates the frequencies and corresponding modes of vibration of your model.
  - Rotordynamic Analysis
  - Prestressed
  - Superelement Export
    Used to export superelements as a DMIG file. This file will include stiffness and mass matrix.
- Dynamics
  Evaluate your design in real-time using SimSolid dynamics analysis.
- Thermal
  Thermal analysis predicts how thermal effects propagate through the model. Steady state and thermal transient analyses are supported.
- Fatigue
  Fatigue analysis is intended for predicting life of structures under cyclic loading.
- Electromagnetics
- Supported Analysis Combinations
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

Prestressed

Prestressed eigenvalue analysis is governed by:

(\bar{K} + λM) A = 0

Where,

$\bar{K}$: Prestress stiffness matrix
$M$: Mass matrix
$A$: Eigenvector
$λ$: Eigenvalues

Prestressed loadcases can be either linear or non-linear. All non-linearity types are supported.

Depending on preloading conditions, the resulting effect could be a weakened or stiffened structure.

If the preloading is compressive, it typically has a weakening effect on the structure (for example, column or pillar under compressive preloading).
If the preloading is tensile, it typically has a stiffening effect (for example, rotorcraft blade under centrifugal preloading).
Prestressed loadcase can be linked to structural Multi-loadcases to capture the prestress effects of various loading conditions.