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Overview Resources

Altair® Radioss®

Democratizing Explicit Dynamics

Altair® Radioss® is an industry-leading explicit solver for highly nonlinear scenarios, offering a powerful commercial package within Altair’s software ecosystem, and OpenRadioss™, a continuously developed open-source version for research and development (R&D). Trusted worldwide, Radioss delivers accurate multiphysics simulations of complex systems responding to dynamic loadings, such as impact, crash, ballistics, and blast, as well as manufacturing and assembly processes, product misuse, and accidental component failure scenarios. Its unique compatibility enables users to run input decks directly from trusted industry solvers – no conversions needed. With unmatched scalability and AI integration, Radioss redefines explicit simulation, empowering engineers to push limits like never before.

Why Radioss?

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Community Powered, Industry-Driven Development

Combining proven crash and impact simulation expertise with rapid, community-driven development, Radioss delivers regularly updated and enhanced features that accelerate innovation and keep users ahead of the competition.

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Integrated Solver Compatibility

With unique third-party solver compatibility, Radioss eliminates adoption barriers by allowing users to directly run external input decks. This seamless experience minimizes workflow disruptions and accelerates productivity, providing immediate access to a modern, fully integrated simulation environment.

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Scalable Performance, AI-Driven Innovation

Radioss delivers scalability across diverse computing architectures, efficiently generating robust datasets from advanced multiphysics simulations for crash and impact-safe designs. This data feeds seamlessly into AI workflows, enabling rapid training of AI models, predictive insights, and simulation-driven innovation.

Key Features

Open Explicit Dynamics with Community Support

Accelerate innovation in crash and impact simulation with an open platform designed to meet evolving industry demands. Community-driven development ensures continuous updates and relevant new features.

Expanding Solution-Specific Capabilities

Leverage state-of-the-art materials and damage models to design safer, more robust products with confidence.

Running LS-DYNA Input

Run LS-DYNA input decks directly within the Radioss GUI for a fully integrated experience. Robust file conversion tools support Abaqus users.

Validated Safety Tools for Human Modeling

Work with partner tools for extensive safety evaluation using crash dummies and human body models (HBM).

Efficient Scaling for Complex Models

Maximize compute efficiency with infinite scalability across diverse architectures. Handle large-scale simulations with ease.

Smarter Predictions with AI Integration

Enhance predictive accuracy by training AI models with Radioss-generated results. Seamlessly integrate with AI-powered workflows for future-ready simulation insights.