The fire is introduced as input data; several options are proposed to interface with fire models including through gas temperature-time curves, net heat flux on the surface of the structure, and data transfer from localized fire models and computational fluid dynamics models. Safir calculates the evolution of the temperature in the structural elements which can be discretized in 2D or 3D, then calculates the mechanical response of the structure exposed to fire.
Starting with version 2022, the recommended preprocessor is GmSAFIR. GmSAFIR is free and open source. Developments for use of the former preprocessor, GiD, are discontinued.
It is a very fast algorithm, based on samples and several innovative processes (time subsampling, random substitution, spatial diffusion, etc). It is both available under a free non-commercial license for testing, or under a paying commercial license for integration into hardware products.
