Altair Radioss is a multidisciplinary finite element solver developed by Altair Engineering. It can solve both linear and non-linear problems. It is a finite element solver using implicit and explicit integration schemes for the solution of engineering problems, from linear statics and linear dynamics to nonlinear transient dynamics and mechanical systems. This multidisciplinary solver enables designers to maximize performance related to durability, NVH, crash, safety, manufacturability, and fluid-structure interaction, in order to bring products to market faster.
Since the 2021 release, Radioss has supported input in the LS-DYNA input format as well as the Radioss 'Block' Format
OpenRadioss, a source available software version of Radioss, sharing the capabilities, input and output formats of Altair Radioss, was released on September the 8th 2022. Despite being called open source software, the software cannot be compiled or used without a library that is provided only in binary form, and for which third parties are granted "limited permission to use".
Disciplines
Linear static analysis
Non-linear explicit dynamic analysis
Non-linear implicit quasi-static analysis
Normal modes analysis for real and complex eigenvalues
Linear buckling analysis
Frequency response analysis
Random response analysis
Linear transient response analysis
Linear coupled fluid-structure (acoustic) analysis
Linear steady-state heat transfer analysis coupled with static analysis
Explicit Arbitrary Eulerian-Lagrangian (ALE) formulation
Explicit Computational Fluid Dynamics (CFD) Smoothed-particle hydrodynamics (SPH) One-step (inverse) and incremental sheet metal stamping analysis