2024
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.
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 This property is used to define ply-based input.
Block Format Keyword Describes the shell property set which is used for 3-node or 4-node shell element. Belytschko, QBAT or QEPH shell formulation are available.
Block Format Keyword This property set is used to define the orthotropic shell property.
Block Format Keyword This property set is used to define the composite shell property set. It is possible to define composite with several layers and each layer with individual orthotropic direction.
Block Format Keyword This property set is used to define the sandwich shell property set. It is possible to define sandwich composite with several layers and each lay with individual material, thickness, layer position and orthotropic direction.
Block Format Keyword This property is used to define the anisotropic layered shell property. This property is currently only compatible with elastic anisotropic fabric (/MAT/LAW58 (FABR_A)).
Block Format Keyword This property is used to define the sandwich shell property using the stack and ply approach. Only one integration point can be defined for each ply.
Block Format Keyword This property is used to define the ply property used in ply-based composite definition. It is used in combination with /PROP/STACK (/PROP/TYPE17) or /PROP/TYPE51 to create ply-based sandwich composite properties.
Block Format Keyword This property is used to define the sandwich shell property using the stack and ply approach. Multiple integration points can be defined through the thickness for each ply.
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.
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