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Overview
Radioss^® is a leading explicit finite element solver for crash and impact simulation.

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What's New
View new features for Radioss 2024.1.
Overview
Radioss^® is a leading explicit finite element solver for crash and impact simulation.
- Features
- Capabilities
  The analysis capabilities of Radioss are comparable to those of other standard finite element and multibody dynamics solvers.
- Formats
- Pre-process
  Pre-processing tools must be used to prepare models for Radioss. Altair HyperWorks provides specialized pre-processors interfacing with the solvers.
- Post-process
  Graphical tools must be used to visualize and evaluate the results of Radioss. Altair HyperWorks provides HyperView, a specialized post-processor, for this.
Tutorials
Discover Radioss functionality with interactive tutorials.
User Guide
This manual provides details on the features, functionality, and simulation methods available in Altair Radioss.
Reference Guide
This manual provides a detailed list of all the input keywords and options available in Radioss.
Example Guide
This manual presents examples solved using Radioss with regard to common problem types.
Verification Problems
This manual presents solved verification models.
Frequently Asked Questions
This section provides quick responses to typical and frequently asked questions regarding Radioss.
Theory Manual
This manual provides detailed information about the theory used in the Altair Radioss Solver.
User Subroutines
This manual describes the interface between Altair Radioss and user subroutines.

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Overview

Radioss^® is a leading explicit finite element solver for crash and impact simulation.

It is equipped to solve complex nonlinear behavior with a multitude of material and failure models. Radioss has built-in multi-physics capabilities for fluid-structure interaction and blast simulation. Limited implicit solver capabilities support gravity equilibrium as well as Spring Back Analyses.

Radioss has been used for crashworthiness studies in the automotive industry for over 30 years. A complete library of crash test dummy models is available for full vehicle crash simulations. A finite volume method based airbag modeling technique is particularly powerful for complex out-of-position cases. Radioss has been widely used in defense applications and in the electronics industry for the verification of designs.

Optimization capabilities are available through seamless integration with OptiStruct as well as through a link with HyperStudy. The integration with OptiStruct allows the problem setup with native Radioss input format as well as through OptiStruct input.

Applications of Radioss include automotive crash, passenger safety in cars, buses and trains, electronics device drop test, sheet metal stamping, blast impact, bird strike, airplane ditching or landing on water, bullet penetration of armor, and so on.

Figure 1.