Issue 086 of the FABIG Newsletter is now available
27 April 2023
We are pleased to inform you that the 86th edition of the FABIG Newsletter is now available on the FABIG website.
FABIG Members are able to download Issue 086 from the Technical Newsletters section of the website (once logged-in) whilst non-Members of FABIG are able to purchase it.
This issue 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.
Take care and stay safe,