Fahts - Fire And Heat Transfer Simulations for
Performance based Fire Design.

Specialized tool for framed structures. Interface to the CFD tool Kameleon Fire Ex , KFX.

Prepares temperature data for structural response analysis with Usfos.

Application:

• Evaluation of need for thermal insulation (passive fire protection of steel and aluminum structures
• Simulation of pipelines and pressurized vessels exposed to fire
• Optimization of Passive Fire Protection, PFP
• Estimation of structural lintegrity during fire (together with Usfos)
• Evaluation of effect from deluge

The technology is based on non linear finite element technique with a special handling of boundary conditions (such as insulation etc).

Fahts has an interface to KFX, which ensures effective and accurate transfer of data to the structure.

Simulation of realistic fire events using KFX

Capabilities:

• Fully 3D non linear time domain Finite Element simulations
• Beam/Column and Shell/Membrane elements
• User defined fires (radiation and temperature) and interface to the CFD tool KFX
• Non linear material behavior (both time and temperature dependencies)
• Models for passive fire protection (PFP), both intact and damaged (partly protected)
• Internal radiation inside hollow sections
• General shape factor calculations for radiation exchange between structural components
• Models for water filled sections
• User defined deluge and interface to deluge model in KFX
• To be used on standard PCs
• Interface to the Graphical user interface XACT (Usfos GUI)
• Verified through laboratory tests

Simulation of fire in the drilling derrick area and collapse of the structure.

Evaluation of local heat transfer on details.

Automatic meshing of framed structures (from beam to shell elements).