FI-BLAST supports the rapid structural analysis of vehicles and buildings bearing the loads of blast and fragments from high explosive charges. FI-BLAST uses the SPLIT-X projectile and blast interface files to create time histories of stress boundary conditions applicable to surfaces of finite element models of structures.
FI-BLAST has the following areas of application:
- Determination of loads on structures from blast and fragments generated by user-defined (rotational symmetric) cased or uncased explosive charges, and graphical illustration
- Output of pressure-time-histories for finite element analyses of the investigated structures in LS-Dyna® or Autodyn®
- Terminal ballistic analyses of fragments effects (penetration depths, residual velocities and masses of fragments) including Monte-Carlo analysis
- Parametric impact analysis with user-definde fragments or projectiles
- Determination of safety ranges for blast and/or fragment effects
- Vulnerability analyses for the identification of potentially unsafe areas of a structure or within a scenario
Thereby, FI-BLAST offers a variety of possibilities for graphical illustration of the results and thus supports the preparation of reports. Besides the significant time savings (few seconds to minutes computation time), FI-BLAST offers considerable advantages compared to possible alternative tools like hydrocodes or empirical blast curves:
- The extremely anisotropic effects of a blast-fragment-warhead due to its geometry and its casing are included in the analysis.
- For the transferred impulse of a fragment, gravity and drag by air are taken into account.
- The reduction of the intensity of the blast load caused by the casing is included in the calculation.
- Ground reflections are considered.
More information about FI-BLAST can be found in the brochure below.