Radioss
Radioss

2021.2

  1. Home
  2. User Guide

    This manual provides details on the features, functionality, and simulation methods available in Altair Radioss.

  3. Explicit Structural Finite Element Analysis
  4. Connections
  • What's New
  • Overview
  • Tutorials
  • User Guide
  • Reference Guide
  • Example Guide
  • Verification Problems
  • Frequently Asked Questions
  • Theory Manual
  • User Subroutines
  • Starter Input
  • Engine Input
Index
Radioss

2021.2

Radioss
  • What's New

    View new features for Radioss 2021.2.

  • Overview

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

  • Tutorials

    Discover Radioss functionality with interactive tutorials.

  • User Guide

    This manual provides details on the features, functionality, and simulation methods available in Altair Radioss.

    • Run Radioss

      The Radioss solver can be executed using different methods described here.

    • Explicit Structural Finite Element Analysis
      • Time Step

        An explicit is solved by calculating results in small time increments or time steps. The size of the time step depends on many factors but is automatically calculated by Radioss.

      • Finite Elements
      • Modeling Tools
      • Materials

        Different material tests could result in different material mechanic character.

      • Failure
      • Composites

        Composite materials consist of two or more materials combined each other. Most composites consist of two materials, binder (matrix) and reinforcement. Reinforcements come in three forms, particulate, discontinuous fiber, and continuous fiber.

      • Connections
        • Spotweld (Bolt or Adhesive Connection)
        • Bolt Modeling for Crash
      • Kinematic Constraints

        In Radioss, a kinematic condition is a nodal constraint applied to a set of nodes.

      • Interfaces

        Several interfaces are available in Radioss, this section deals with contact interfaces only. Each interface is distinguished with a type number.

      • Loads

      • Airbag Modeling

        Airbags are modeled as monitored volumes /MONVOL in several different ways.

      • Debugging Guidelines
      • Appendix
    • Implicit Structural Finite Element Analysis
    • Fluid and Fluid-Structure Simulation
    • Smooth Particle Hydrodynamics (SPH)

      The Smooth Particle Hydrodynamics method formulation is used to solve the equations of mechanics, when particles are free from a meshing grid.

    • Multi-Domain Technique
    • Design Optimization

      Optimization in Radioss was introduced in version 13.0. It is implemented by invoking the optimization capabilities of OptiStruct and simultaneously using the Radioss solver for analysis.

    • Error Message Database

      This section is comprised of error messages in ascending numerical order.

    • Engine Error Messages
    • Warning Message Database

      This section is comprised of warning messages in ascending numerical order.

  • 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.

  • Starter Input

    This manual provides a list of all the model definition keywords and options available in Radioss.

  • Engine Input

    This manual provides a list of all the solution definition keywords and options available in Radioss.

View All Altair Simulation Help

Radioss
Radioss

2021.2

  1. Home
  2. User Guide

    This manual provides details on the features, functionality, and simulation methods available in Altair Radioss.

  3. Explicit Structural Finite Element Analysis
  4. Connections
  • What's New
  • Overview
  • Tutorials
  • User Guide
  • Reference Guide
  • Example Guide
  • Verification Problems
  • Frequently Asked Questions
  • Theory Manual
  • User Subroutines
  • Starter Input
  • Engine Input
Index

Connections

  • Spotweld (Bolt or Adhesive Connection)
  • Bolt Modeling for Crash

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