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Altair SimSolid®

Multi-Physics Analysis Software for Complete CAD Assemblies, High-Fidelity Results, and Instant Design Comparisons

Outperforming Competitors with Accurate Results Up to 100X Faster

Altair SimSolid is a game-changing simulation and structural analysis tool for designers, engineers, and analysts. By eliminating geometry preparation and meshing, structural performance can be validated within minutes on fully featured CAD assemblies, saving time and reducing errors.

Unlike traditional FEA tools, SimSolid works directly with complete CAD models, enabling quick evaluation of complex designs without modification. This speeds up the simulation cycle for faster iterations and early validation. It’s powerful, fast, and accurate simulation helps engineers make quicker decisions and accelerate product development. By enabling exploration of more design scenarios with high accuracy, SimSolid allows teams to bring quality products to market faster and stay ahead of the competition.


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COMING SOON

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?

Rendering of a SimSolid simulation being performed on a PCB.

Eliminate Prep Work and Focus on Analysis

Streamline your workflow by eliminating the need for geometry simplification and meshing. SimSolid eliminates two of the most time-consuming and error-prone steps in traditional structural analysis. The CAD model serves directly as the simulation model, eliminating the need to create a separate finite element model.

Rendering of a satellite in 3 separate exploded view stages with a SimSolid structural simulation being performed.

Analyze Large, Complex Assemblies with Ease

Designed for speed and scalability, SimSolid handles complex parts and large assemblies with exceptional efficiency, including those with rough contact surfaces, gaps, or overlapping geometry.

Rendering of a seed planter in 3 separate exploded view stages with a SimSolid structural simulation being performed.

Get Results in Minutes to Seconds

SimSolid delivers accurate structural analysis results in seconds to minutes on a standard PC. Quickly compare multiple design scenarios. Improve speed, accuracy, and usability for simulation-driven design across a wide range of industries.

Key Features

Full Range of Analysis Types

SimSolid offers linear and nonlinear statics, thermal analysis, modal analysis, fatigue analysis, and stress linearization. It also supports dynamic analysis simulations, including time, frequency, global-local, buckling, composites, squeak and rattle, thermal stress, and random response, enabling fast and comprehensive structural evaluation.

Extensive Library of Connections & Materials

Supports bonded, sliding, and separating contacts with friction, along with bolts, virtual connectors, welds, rivets, adhesives, joints, and bushings. SimSolid also handles a wide range of material types, including isotropic, orthotropic, elasto-plastic, rigid materials, gas and liquid bodies.

Variety of Boundary Conditions

Simulate how a design interacts with its environment including: 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.

Open and Interoperable with All Major CAD Systems

Supports all major CAD and PLM file formats, including CATIA, NX, PTC Creo, Inventor, Fusion 360, SOLIDWORKS, JT, STEP, VDA, Parasolid, ACIS, PLMXML, CGR, and STL without the need to import/export files. It also offers direct integration with Onshape and Teamcenter for seamless data access.

Output Data and Visualizations

View various result types using contour plots, animations, XY plots, probes, and detailed data on stress, strain, displacement, safety factors, modal frequencies, mode shapes, and participation factors. Results can be displayed across datum planes or cut sections, with support for superposition and envelope of multiple load cases.

Instant Part Classification

Import CAD models, automatically classify parts by type, and begin analysis without manual cleanup. This allows for users to streamline workflows and reduce time spent on data preparation.

Featured Workflows

Simulate at the Speed of Design

 

Front-loading with Simulation

 

Integration with Altair® Inspire™

 

Featured Testimonials

Building Reliable Space Products 10x Faster - Altair SimSolid Streamlines Product Development Cycles for Rocket Launch Systems

When it comes to manufacturing innovative aerospace technologies, the product development and analysis process can be long and tedious. As part of their new generation launch vehicle and spacecraft engine product offerings, Astra was looking for a way to streamline their product development life cycle. While they intended to improve speed and efficiency, it was important that Astra’s team not lose accuracy within their data and remain consistent with their pre-existing test results. With Altair SimSolid, Astra was able to build and analyze better, more reliable products faster. It allowed Astra to perform the expected workload they needed, producing robust results and accurate reporting in a tenth of the time it took other in-house tools currently in use.

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Customer Stories

Fast-Tracking Sustainable Mobility - Altair SimSolid Enhances Accuracy in Battery Development and Plastic Parts Design

Röchling Automotive is an automotive supplier of customized products made of high-performance plastics. Through the use of bioplastics, recyclates and battery solutions, Röchling Automotive is realizing its vision "We Drive Sustainable Mobility”.

For a recent project, Röchling Automotive developed new flow channel and cell holder system plastic parts for a battery cooling system that consisted of a battery heat exchanger and a flow channel for the coolant. To ensure the performance and structural integrity of a new battery coolant system, the Röchling Automotive team had to perform a structural analysis of the newly designed plastic parts.

Altair SimSolid enabled Röchling Automotive to slash development time while still achieving high-quality results. The team greatly benefited from SimSolid’s meshless approach, which eliminated the need for notoriously tedious mesh creation and geometry simplification. As a result, their team could analyze more CAD models in a given time, allowing them to achieve optimal designs sooner and with greater confidence. Moreover, thanks to SimSolid’s preliminary evaluation of new designs – which focuses on products’ overall performance – Röchling Automotive can now submit better quotations to customers earlier.

Customer Stories
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Simulation in the Design Loop with Altair SimSolid

Presentation by Gareth Mayville, Engineering Designer with Kautex Textron as part of Altair's Simulate at the Speed of Design 2025 conference.

This presentation showcases how Kautex has leveraged Altair SimSolid to drive rapid, innovative and creative design solutions on a vastly reduced time scale. The products offered by Kautex and scenarios that led to the benchmark and adoption of SimSolid will be covered, followed by details of the benchmark, key benefits of SimSolid and how they are leveraged, finishing off with some points about how workflows such as Modal Analysis are being investigated to be SimSolid-exclusive workflows at the organization.

Simulate at the Speed of Design

Driving Aerospace Competitiveness - INESPASA Accelerates Design of Aero Tooling Structures Using Altair SimSolid®

With more than 35 years of experience in research & development projects INESPASA has been working with companies such as Airbus, Alestis, Boeing, and Renault. To be successful in a highly competitive market, aeronautical tooling companies like INESPASA must deliver maximum quality and comply with highly demanding standards and regulations while meeting tight time constraints and limited budgets. Developing and testing aircraft component prototypes is time consuming and expensive, so INESPASA had to find new and faster ways – like Multiphysics simulation – to evaluate its aero-structure designs, identify problems before they occur, and ensure viability.

INESPASA turned to Altair and applied tools such as Altair SimSolid®, Altair® Inspire™ and Altair® MotionSolve®. Thanks to fast simulation results, INESPASA addressed their challenge and found the solution with the best weight-stiffness ratio providing optimum usability of their aero structure elements.

Customer Stories