PUBLICATIONS AND VIDEOS
Newsletter Issue 086
This FABIG Newsletter comprises the following:
G. Vannier - The Steel Construction Institute (SCI)
- Modelling blast wave clearing using Load_Blast_Clearing: Part 2 - Oblique clearing and TNT equivalence
L. Schwer1, S. Rigby2 and T. Slavik3 - 1Schwer Engineering & Consulting Services, 2University of Sheffield, 3Ansys, Inc.
This paper follows the verification and validation study of the new LS-DYNA keyword Load_Blast_Clearing (LBC) published in Newsletter Issue 85. This new keyword modifies the “standard” Load_Blast_Enhanced (LBE) predictions to account for pressure reduction due to blast wave clearing. The objective of this paper is to validate the new keyword Load_Blast_Clearing against experimental results involving oblique Mach Stem reflections. A method for estimating the TNT equivalence for Mach Stem reflections is presented for this purpose.
- The challenges of transitioning to Fluorine Free Foam in a major energy company
E. Paillier and P. Hoorelbeke - TotalEnergies
This paper discusses the challenges posed by the transition from Aqueous Film Forming Foams (AFFF) to Fluorine Free Foams (FFF) for fire-fighting as legislation to protect the environment and people’s health via a ban of the PFAS family of chemicals is evolving fast in Europe and other countries worldwide.
- Simulation of a premixed explosion of gas vented during Li-ion battery failure
M. Henriksen1, K. Vaagsaether1, J. Lundberg1, S. Forseth2 and D. Bjerketvedt1 - 1University of South-Eastern Norway, 2Norwegian Defence Research Establishment (FFI)
This paper presents a Computational Fluid Dynamics (CFD) method for simulating explosions of gases vented from failing LIBs using open-source software. The code mech2Foam was used to generate the required CFD input parameters for Li-ion battery vent gas composition, which was then used in several CFD simulations of explosions in a 1-meter rectangular channel. The simulation results were compared with experimental results for validation of the method and the CFD model.
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Published in: April 2023
LS-DYNA Keyword / Load_Blast_Clearing / TNT Equivalence / Aqueous Film Forming Foams (AFFF) / Fluorine Free Foam (FFF) / Explosion modelling / Li-ion battery failure
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