Altair® SimSolid®.

Structural analysis for rapid design iterations

Perform structural analysis on fully functional CAD assemblies in minutes. SimSolid is a game-changing simulation technology for designers, engineers and analysts. It eliminates geometry preparation and meshing: two of the most time-consuming, experience-intensive and error-prone tasks performed in conventional structural simulation.

Simulation at design speed

Many design scenarios can be quickly simulated under real-world conditions. Early CAD models in any common format can be used for this. SimSolid’s tolerance for imprecise geometry means that, unlike simulation tools built into CAD, there is no need to simplify complex geometries before analysing designs.

SimSolid supports all common joints (bolt/nut, bonded, welded, riveted, slip) and analysis of linear static, modal, thermal properties, along with more complex coupled, non-linear, transient dynamic effects. By providing the power of simulation to help make engineering decisions faster, it supports the development of high quality products and helps beat the competition.

Simulation at design speed

Why Altair SimSolid?

Eliminate Geometry Simplification

Eliminate Geometry Simplification

Altair SimSolid’s unique technology totally eliminates geometry simplification and meshing: the two most time-consuming, expertise extensive and error-prone tasks done in traditional structural analysis.

Analyze Complex and Large Assemblies

Analyze Complex and Large Assemblies

Conceived to analyze complex parts or large assemblies not practical with traditional FEA, Altair SimSolid excels faced with ragged contact surfaces having both gaps and overlapping geometry.

Get Results in Seconds to Minutes

Get Results in Seconds to Minutes

Altair SimSolid is fast, having solution times measured in seconds to minutes, typically, on a standard PC, enabling comparison between multiple design scenarios quickly and accurately.

Key Features

Available Solutions

Linear statics, modal, stress linearization, thermal, coupled thermal-stress, nonlinear statics (contact, material and geometrical), fatigue analysis, linear superpositioning, linear dynamics (time, frequency, and random response)


The software supports isotropic, elasto-plastic, orthotropic materials, as well as rigid parts and fluid bodies.

Supported Connections

The tool allows for the analysis of bonded, sliding and friction joints, bolts, virtual fasteners, welds (spot, laser and fillet), rivets, adhesives, connectors and bushings.

Boundary Conditions

The software supports stationary, sliding, hinged, force, pressure, gravity, thermal, inertial, inertial load, bolt/nut tightening, hydrostatic, bearing, volumetric expansion and contraction, distributed and remote mass and remote loads.

CAD Connectivity

The solution reads all popular CAD/PLM file formats, including: CATIA, NX, PTC/Creo, Inventor, Fusion 360, SOLIDWORKS, JT, STEP, VDA, Parasolid, ACIS, PLMXML, CGR, STL. It also provides direct data integration with Onshape and Teamcenter.

Result Types

The tool generates contour plots with displacements, stresses and strains, animations of the deformed shape, max/min labels, point probes, XY plots, reaction/contact forces, bolt/nut forces, spot weld forces, modal frequencies and shapes, modal contribution factors and safety factors

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