| Login


The Durability of a design is a key requirement in industry today, as customers expect a robust design. Altair HyperWorks provides load prediction, stress analysis, and fatigue prediction using stress-life or strain-life methods.

Gestamp Minimized Mass and Increased Durability with HyperWorks Read why Gestamp selected Altair to develop a set of custom tools within HyperWorks, eliminating the need for an initial 'trial and error' design loop while reducing mass and increasing durability of a rear twist beam suspension system Read the Gestamp Case Study
The virtual durability process can bring together MBD, FE, and Fatigue Read more to see how the virtual durability process can minimize physical testing or augment it to enable a rapid turnaround process as well as provide a deeper insight into the system in a cost effective manner. Read the White Paper
With increasing competition, durability is an important feature of a product to ensure customer loyalty. Late changes in the design cycle to respond to test results are expensive and create production delays and system risks. Simulating product durability can provide early results and tremendous insight into the design for the product development team while reducing cost and meeting deadlines.

Altair can help in many ways to ensure that your product hits the market in perfect shape. The HyperWorks suite provides excellent tools to prepare, generate and evaluate simulation results. Even without the extensive customization options HyperWorks fits perfectly in your work environment. Ready to use automation templates make your work efficient and help you to focus on the essential goal to produce quality products.

“Altair's offering of an entire suite for CAE applications is the best solution available in the market to support innovative product development.”

–Andreas Syma, director of Global CAE for DeWalt power tool development

DeWalt, a Stanley Black & Decker brand

Read Full Article


Load prediction with Multibody Dynamics simulation Process setup with Automate Signal post-processing in HyperGraph Fatigue Process Process setup with Automate Manager Template for RADIOSS
Load prediction with Multibody Dynamics simulation Process setup with Automate Signal post-processing in HyperGraph Fatigue Process Process setup with Automate Manager Template for RADIOSS
Img Img Img Img


HyperMesh, OptiStruct and RADIOSS allow easy modelling and simulation of structures including complex automotive components, lightweight composite designs, and rugged industrial components.

Here are some functionality helping the durability engineer:

  • Connector features enables FE users to quickly model spot welds and MIG welds using the latest industry standard methods. Users can convert the neutral connector entities to the weld type of their interest.

  • HyperMesh customization framework allows users to create weld macros that enables them to build a complex finite element mesh according to requirement of various fatigue solvers.

  • Fatigue Process Manager template allows users the setup analyses in the RADIOSS fatigue solver.

  • OptiStruct solver supports combined static stress and fatigue analysis in a single run. It can perform industry standard stress and strain life predictions.

  • Altair OptiStruct can perform fatigue optimization in a single environment.

Signal Processing

HyperGraph is a versatile durability signal processing utility for test and CAE data analyst. With its powerful math engine, it enables durability engineers to load/stress/strain data. It has the capability to handle a huge amount data frequently encountered by durability engineers.

User Functions:

  • Multi-format Import

  • Frequency analysis

  • Filtering

  • Statistics

  • Extraction Concatenations

  • Windows

Advanced Functions:

  • Rainflow Counting

  • Range Pair Counting

  • Peak valley extraction

  • Level Crossing

  • Time Level

Advanced Report Framework:

HyperGraph automated report frame allow durability analyst to run through the same set of durability analysis with multiple set of Test loads. User can publish the reports in HTML and PowerPoint.


HyperView is a complete post-processing and visualization environment for finite element analysis, multi-body system simulation, digital video, and engineering data. HyperView combines advanced animation and XY plotting features with window synching to enhance results visualization.

Durability related features include:

  • The powerful Expression Builder can build custom math functions such as Factor of Safety, Target Life and various failure criteria.

  • Complex Linear Elastic to Elastic-Plastic conversion can be done writing a custom Neuberisation function in Result Math.

  • The Linear Superposition tool can be used to linearly superimpose peak static loads and estimate the Factor of Safety on worst loading conditions.

  • The compact Altair H3D result format allows engineers save disk space without comprising on information.

  • Altair H3D is being standardized as preferred input format to commercial fatigue solvers such as FEMFAT and nCode.

  • Custom hot spot utilities can be used diagnose critical regions.

Multibody Dynamics

MotionView and MotionSolve together are world class Multibody Dynamics solution which can be used to derive virtual loads. Durability Engineers can use this technology today to accurately predict loads on components, which have been physically impossible to a test engineer.

Some durability related functionality includes:

  • MotionView provides direct interface to various test data format as input such as DAC RSP and ASCII files. This allows CAE engineers to directly import processed test data without intermittent file conversions.

  • Advanced Fatigue Prep tool allows conversion of various file format which enables subsequent fatigue runs


    • Altair H3D to nCode FES or ASC

  • Loads Export Utility interfaces directly to popular FEA software such as RADIOSS and MSC Nastran

  • MotionSolve supports modal stress recovery of flexible bodies, which can then be imported to fatigue solvers such as FEMFAT and nCode to access the life of components

  • The powerful Altair H3D result format allows engineers save on disk space without comprising on information


HyperWorks Automate is an advanced process based tool that enables the creation of a repeatable, scalable process in the Altair HyperWorks desktop environment. It includes several building blocks that can be assembled into a sequence that can be executed several times. Own building blocks can be added, making it a powerful customization tool.

Key features:

  • Creation of reusable tasks

  • Ability to assemble tasks

  • Customization with little coding knowledge needed

Fatigue Workflow

Altair HyperLife is an easy-to-learn fatigue analysis software developed on a solver-neutral framework. It provides a comprehensive toolset for durability analysis, directly interfacing with all the major finite element analysis (FEA) results files. With an embedded material library, HyperLife enables prediction of fatigue life under repetitive loadings experienced in a wide range of industrial applications.

CAEfatigue VIBRATION from CAEfatigue Ltd. is a powerful frequency domain random response post processor (with connections to NVH) and secondly, a unique vibration fatigue solver that works with both mixed random (Power Spectral Density) and deterministic loading sources in a way not currently possible with existing products.

DesignLife from HBM nCode is an up-front design tool that identifies critical locations and calculates realistic fatigue lives from leading finite element results for both metals and composites. Users can go beyond performing simplified stress analysis and avoid under- or over-designing products by simulating actual loading conditions to avoid costly design changes.

FEMFAT from Engineering Center Steyr offers fatigue life prediction of all vehicle components (engine, gearbox, chassis, frames, car bodies and structures) and machinery equipment based on Finite Element Analyses (FEA). Additional to consideration of complex multi-axial loadings, an assessment of welding seams as well as spot welds and self-piercing rivets in steel and aluminum can be carried out. Components undergoing thermo-mechanical loadings can be assessed by considering effects of material plasticity, elevated temperature (oxidation) and creep.

Complementary Solutions

HyperLife An easy-to-learn software developed on a solver-neutral framework that provides a comprehensive tool kit for fatigue and durability analysis. Learn More
MotionSolve Integrated solution to analyze and optimize multi-body system performance. Through extensive customer partnership, MotionSolve is thoroughly validated for quality, robustness and speed. Learn More
FEMFAT FEMFAT offers fatigue life prediction of all vehicle components (engine, gearbox, chassis, frames, car bodies and structures) and machinery equipment based on FEA. Learn More
nCode DesignLife nCode DesignLife provides fatigue life prediction from finite element results to answer the question "how long will it last?" or "will it pass the test?" before prototyping. Learn More
View More

Be The First To Know