Computational Models and Data Generation for V/L Assessment - final report 2020-2022
Publish date: 2023-03-15
Report number: FOI-R--5413--SE
Pages: 28
Written in: Swedish
Keywords:
- Vulnerability
- lethality
- Aval
- behind armour debris
- shaped charge
- damage criteria
- penetration models
- confined explosions
- structural damage
- initiation of munitions
Abstract
The R&D project Computational Models and Data Generation for V/L Analysis1 is part of the Armed Forces research program. It was a three-year project with the task of generating and implementing computational models for vulnerability and lethality (V/L) analyses on a platform level. The project aims to utilise the detailed knowledge, research and studies on technical and physical phenomena, e.g. interaction between warheads and protected platforms, to support the continued development of computational models for V/L analysis. This report presents a summary of the work done in this project, mainly focusing on the efforts during 2022, and outlines ideas for future work. Previously published reports cover the work during 2020 and 2021 in detail, and is only repeated here in short for context. The following areas have been studied and performed in the project: ? Improvement and development of penetration models for hypersonic fragments, shaped charge, KE projectiles and fragments. ? Assessments regarding computational models and data required for improved V/L analysis of navy ships, tanks and IFVs. ? Models to predict structural damage in ships as well as simplified models to predict pressures from contained explosions. ? Progress in the development of models of secondary effects, e.g. behind armour debris and initiation of munitions, have been made. ? Models for human vulnerability have been studied, e.g. through assessment of models for skin penetration. ? Data generation for V/L-analyses by assessing and documenting performance of fragments and projectiles in different materials, and through mapping the critical components in various platforms and their kill criteria. ? Initial investigations of models for V/L-analysis for lasers. ? Documenting simplified models for assessing the consequences of explosions.