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Radioss New Features

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Altair Radioss 2019 offers a new multi-material for Arbitrary Lagrangian‐Eulerian (ALE) applications, which is compatible with all Equation of State (EOS), any fluid ALE material, and can be used with brick or linear tetrahedron elements. This material uses a new Finite Volume Method solver which is simple to use, faster, more accurate, and ensures energy conservation.

Richtmyer-Meshkov Instability

Available for 2D axisymmetric and planar analysis with 3 node or 4 node solid elements, the necessary boundary conditions, fluid structure contact interfaces and initialization options are supported in this material law.

New results mapping options from 1D or 2D to 2D or 3D models are also available for new multi-material /MAT/LAW151.

1D function mapped on a 3D solid mesh (Spherical mapping)

Under water explosion (UNDEX) can now be computed using the Boundary Element Method (BEM). Without a fluid mesh, this option enables the pressure field on a wet surface structure to a far-field underwater explosion to be computed.

Structure deformation results from Under Water Explosion analysis with Boundary Element Method (BEM)

Many performance improvements, stability, and better edge treatment have been implemented for the contact interface (/INTER/TYPE24), which is dedicated to the electronics and consumer goods market (models dominantly meshed with solid elements). For the same kind of applications, tied contact /INTER/TYPE2 is also improved.

The node to surface contact interface /INTER/TYPE25 with constant stiffness now uses less CPU power and computer memory. The handling of contact gaps for meshes with a thickness bigger than the mesh size has also been improved.

For easier use of the Barlat Yld2000 material law, Lankford parameters 0°, 45°, 90°-directions, along with biaxial loading can be set directly.

For submodels, more options are available, along with the ability to define them within other submodels.


Gallery

Enhanced capability for automatic airbag volume meshing LAW77 takes into account air motion inside of foam cells Direct coupling between Multiscale Designer and RADIOSS RADIOSS directly supports ply-based modelling now
Enhanced capability for automatic airbag volume meshing LAW77 takes into account air motion inside of foam cells Direct coupling between Multiscale Designer and RADIOSS RADIOSS directly supports ply-based modelling now
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