2024.1
This manual provides a detailed list of all the input keywords and options available in Radioss.
This manual provides a list of all the model definition keywords and options available in Radioss.
Block Format Keyword
View new features for Radioss 2024.1.
Radioss® is a leading explicit finite element solver for crash and impact simulation.
Discover Radioss functionality with interactive tutorials.
This manual provides details on the features, functionality, and simulation methods available in Altair Radioss.
Current Radioss format uses the 12x extension format.
This format allows running either Starter or Engine with the same file.
New and modified features in Radioss.
The Smooth Particle Hydrodynamics method formulation is used to solve the equations of mechanics, when particles are free from a meshing grid.
Block Format Keyword In this group, keywords are used to set default value, global parameter, analysis type, input/output print, damping and ALE and CFD treatment for the whole model. For default value, it is still possible to overwrite in each specific keywords.
Block Format Keyword In Radioss, two node types are available. They use Cartesian coordinate to describe the position of each node.
Block Format Keyword In this group, keywords are used to combine material and property information (/PART), assemble model (/SUBSET) or define a separate model (//SUBMODEL).
Block Format Keyword Interfaces solve the contact and impact conditions between two parts of a model. Several interface types are available in Radioss and use different contact treatments.
Block Format Keyword Defines spring property with one translational DOF. This spring accounts for nonlinear stiffness, damping and different unloading. Deformation based failure criteria is available.
Block Format Keyword This spring property works with six independent modes of deformation. This spring accounts for nonlinear stiffness, damping and different unloading.
Block Format Keyword The pulley spring property set (with one translational DOF) is used to model a pulley.
Block Format Keyword This beam type spring property works as a beam element with six independent modes of deformation. This spring accounts for nonlinear stiffness, damping and different unloading. Deformation, force and energy-based failure criteria are available.
Block Format Keyword This generic spring property can only be used with spring materials /MAT/LAW108 (SPR_GEN) or /MAT/LAW113 (SPR_BEAM) and assigned to a part (/PART).
Block Format Keyword This property set is used to define the axisymmetric spring property set.
Block Format Keyword Defines the tabulated spring property.
Block Format Keyword Describes a damper spring property with one translational DOF. Damper force is bounded by stiffness force.
Block Format Keyword Describes the multi-strand property set.
Block Format Keyword This property describes the pretension spring property set that can be used to model seat belt pretensioners or apply pretension to a bolt.
Block Format Keyword Describes the joint type spring.
Block Format Keyword This property describes the stitch spring. The stitch spring is characterized by complex parameterizable failure criteria, which differ in compression and tension.
Block Format Keyword Describes the predit property set. This is a beam-like spring element for spot welds modelization.
Block Format Keyword This is a spring element property, which represents a simple macro model of a crushable frame in compression, tension, torsion and bending.
Block Format Keyword KJOINT2 is a penalty connection used to model joint connections between rigid or deformable bodies.
Block Format Keyword This property describes a user-defined elasto-visco plastic material using user-defined functions to describe time dependent active and passive behavior for tension and (force versus deflection or force versus strain time and visco plastic and elastic).
Block Format Keyword Monitored volumes can be used to model an airbag, tire, tank, or any closed volume.
Block Format Keyword Radioss supports several different kinematic constraints, which are mainly used to impose acceleration, velocity, displacement or temperature in structure or constraint the moving of structure. They are mutually exclusive for each degree-of-freedom (DOF). Two kinematic conditions applied to the same node may be incompatible.
Block Format Keyword In Radioss the following load cases are available. Stress/strain as initial state could be considered by modeling, as well as pressure, gravity, and thermal load.
Block Format Keyword In this group, tools like transformation, frames, skews, and curve are introduced.
Block Format Keyword Keywords in this group are used to define how to select a group of node, part, elements, lines, or surfaces.
Block Format Keyword Adaptive Meshing is used in metal forming to divide the element to better describe the geometry. /ADMESH/GLOBAL and /ADMESH/SET are not available for SPMD computation.
Block Format Keyword Time histories output for different element groups, section output, or gauge output are described in this group.
Block Format Keyword Keywords that are still supported, but no longer maintained (*) are considered obsolete.
This manual provides a list of all the solution definition keywords and options available in Radioss.
This manual provides a list of LS-DYNA input files available in Radioss.
Optimization Keyword This manual contains the description of the keywords for the Radioss optimization. This manual is compatible with the version 2018 of Radioss.
This manual contains the description of the keywords for the Radioss Multi-Domain.
This manual presents examples solved using Radioss with regard to common problem types.
This manual presents solved verification models.
This section provides quick responses to typical and frequently asked questions regarding Radioss.
This manual provides detailed information about the theory used in the Altair Radioss Solver.
This manual describes the interface between Altair Radioss and user subroutines.
View All Altair HyperWorks Help