Altair SimSolid®

Structural Analysis for Rapid Design Iterations

Outperforming Competitors with Accurate Results Up to 25X Faster

By performing structural analyses on fully featured CAD assemblies within minutes, Altair SimSolid is the game-changing simulation technology for designers, engineers, and analysts. It eliminates geometry preparation and meshing: the two most time-consuming, expertise-extensive, and error-prone tasks performed in a conventional structural simulation.

Multiple design scenarios can be simulated quickly under real-life conditions. Early CAD models, in any common format, can be used. Altair SimSolid tolerance of imprecise geometry means that, unlike CAD-embedded simulation tools, there is no need to simplify complex geometries before analyzing designs.

Altair SimSolid supports all typical connections (bolt/nut, bonded, welds, rivets, sliding) and analysis of linear static, modal, thermal properties, along with more complex coupled, nonlinear, transient dynamic effects. Providing the simulation power to help quicker engineering decisions, it aids development of quality products faster to beat competitors to market.

Altair SimSolid is a leader in Enterprise Simulation & CAE on G2 Altair SimSolid is a leader in Simulation and CAE on G2. Altair SimSolid is a leader in Small-Business EMEA Simulation and CAE on G2.


Altair SimSolid: A New Era for Electronic Simulation

Now extending our revolutionary multidisciplinary, meshless solver to PCBs and ICs — no simplifications, just absolute resolution.

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Why Altair SimSolid?

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

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

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)


Isotropic, Elasto-plastic, Orthotropic, Rigid parts and liquid bodies

Supported Connections

Bonded, sliding and separating with friction, bolts, virtual connectors, welds (spot, laser, and fillet), rivets, adhesives, joints, and bushing

Boundary Conditions

Immovable, sliding, hinge, force, pressure, gravity, thermal, inertial loads, inertia relief, bolt/nut tightening, hydrostatic, bearing, volumetric expansion and shrinkage, distributed and remote mass, and remote loads

CAD Connectivity

Reads all common CAD/PLM file formats including: CATIA, NX, PTC/Creo, Inventor, Fusion 360, SOLIDWORKS, JT, STEP, VDA, Parasolid, ACIS, PLMXML, CGR, STL. Direct data integration to Onshape and Teamcenter.

Result Types

Contour plots with displacements, stress & strains, deformed shape animation, max/min labels, point probes, XY plots, reaction/contact forces, bolt/nut forces, spot weld forces, frequencies and mode shapes, modal participation factors, safety factors

Featured Workflows

Simulate at the Speed of Design


Front-loading with Simulation


Integration with Altair® Inspire™


Featured Testimonials

Altair SIMSOLID Walkthrough

Digital Engineering: Learning SimSolid and Exploring Design Alternatives From Day One

For this overview, Tony Abbey, director of FETraining and a consulting analyst at Digital Engineering, was able to explore design configurations rapidly. This prompted further exploration into alternative configurations, such as an integral fitting.


DEVELOP3D: Solving Huge Assemblies Accurately in a Designer-oriented Tool

When it comes to simulation, large assemblies cause some serious headaches for those looking to perform efficient analyses. Al Dean, co-founder and editor-in-chief of DEVELOP3D, explores SimSolid's unique solution to an age-old problem.

Testimonial explores what sets SimSolid apart from other software Faster than FEA, Just as Accurate explores what sets SimSolid apart from other "mesh-free" software - it's accuracy in comparison to traditional FEA tools. They also cover SimSolid features like modeling of welds, complex assemblies, and thin-walled structures.


Dr. Richard King: Industry Expert Takes SimSolid Through the Paces

The "SimSolid Real-World Validation Manual for Stress Analysis" takes a series of simple and complex SolidWorks models through static simulation studies in SimSolid. In all cases, stress results between the two analysis tools was within 10%.