Altair SimSolid.

Structural analysis without the need for geometry simplification and meshing

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High fidelity simulation

Altair SimSolid transforms structural analysis by removing the need for geometry simplification and meshing.

It performs high-fidelity simulations directly on full CAD assemblies, allowing engineers to explore designs at unprecedented speed.

By drastically reducing pre-processing time, teams can validate performance earlier and make more informed design decisions.

Battery pack simulation in Altair SimSolid

Meshless geometry-based simulation

Remove the traditional bottlenecks of simulation. With Altair SimSolid, there is no need for mesh generation or aggressive geometry cleanup.

Feed your full, detailed CAD model straight into the solver, even for multi-part assemblies, and let Altair SimSolid handle the connections automatically.

This means faster feedback loops and fewer simplifications that might hide critical stress regions.

Rapid analysis for real-world designs

Built to handle massive assemblies with small details and complex joints, Altair SimSolid produces accurate results in minutes rather than hours.

Its solver technology efficiently handles nonlinear contacts, large deformations, and varying materials, enabling engineers to assess realistic performance at design speed.

A theater stage analysis in Altair SimSolid
PCB simulation in Altair SimSolid

Solver technology that adapts locally

Rather than relying on uniform discretization, Altair SimSolid divides geometry into regions and adds computational detail only where needed (e.g., near high gradients).

With facet-based representation (akin to STL) as a starting point, the areas requiring more accuracy can be enriched.

This adaptive approach reduces computational cost while maintaining result fidelity, particularly around small features, fillets, and narrow gaps.

Analysis modes from static to fatigue

Gain support for a broad spectrum of physics:

  • Linear and nonlinear statics
  • Dynamic modes (modal, response spectrum, squeak and rattle)
  • Thermal / coupled thermal-stress
  • Fatigue and random response
  • Contact nonlinearity, preloaded fasteners, welded connections

The solver adapts to the problem complexity, offering accurate insight without overburdening users with solver tuning.

Von Mises stress analysis of a claw structure in Altair SimSolid
Satellite launch vehicle model in Altair SimSolid

Automatic connections and assembly intelligence

Use Altair SimSolid to infer and build connections intelligently, particularly for working on evolving designs and variant geometries:

  • Recognize bolts, washers, welds, stitching, adhesives, etc.
  • Set tolerance ranges for gap/penetration detection
  • Review, refine or disable connections part by part
  • Retain connectivity logic even when geometry updates so you don’t rebuild everything from scratch

Instant design iteration and CAD integration

With tight CAD integration users can analyze design variations immediately after modification.

Engineers can test multiple design directions within a single session, encouraging rapid experimentation and design optimization.

A seed planter machine modeled in Altair SimSolid
No geometry simplification in Altair SimSolid

Accessible simulation for every engineer

With an intuitive interface and built-in guidance, Altair SimSolid enables both experts and non-experts to perform advanced simulation.

Bring simulation forward in the design process to reduce rework and increase the value of every engineering hour.

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