L-226 Mitigation Technologies for Warheads

February 2019
This report was prepared by Pierre-Antoine Prévot as part of his internship conducted between his second and third year at ENSTA Bretagne where he is studying mechanical engineering with a specialization in energetic materials. The requirements of ENSTA Bretagne include an assistant engineer internship in a field related to the specialization. The purpose of this internship is to apply knowledge in a professional context. The internship was sponsored by MSIAC (Munitions Safety Information Analysis Center) in NATO headquarters in Brussels from the 25th of June to the 14th of September 2018. This internship is a chance to have an overview of a professional environment in order to discover many aspects of the munitions engineering role and to define more specifically in the context of a professional project. This report provides an overview of mitigation technologies for warheads. The report deals with insensitive munitions and specifically mitigation technologies available for warheads and an analysis about insensitive explosive compositions. The report also prepares information for uploading into the MSIAC Mitigation Technologies for Munitions (MTM) software tool for use by MSIAC Member Nations.

ABSTRACT

Munitions safety is a major issue for munitions suppliers. Indeed munitions must be insensitive to external stimuli (bullets, fragments, heating…). The main goal of insensitive munitions is to reduce the response of munitions to threats. This can be achieved by using mitigation technologies. Many studies have been conducted during the last decades about insensitive munitions and many systems have been designed to meet insensitive munitions standards and to cope with threats. The report is focused on mitigation technologies applied to warheads and will be eventually used by MSIAC to provide a global overview on the state-of-the-art concerning mitigation technologies for insensitive munitions. The report aims to provide the main families of mitigation systems with examples and references: thermal protection, active venting mitigation, passive venting device, case composition, barrier, diverter, arrangement and deluge systems. The report also contains a presentation of the concept of insensitive munitions and the associated standards (NATO, France, USA…).

Keywords: Warhead, mitigation, insensitive munitions, thermal protection

RÉSUMÉ

La sécurité des munitions est devenue un sujet important pour les fabricants de munitions. En effet, les munitions doivent être insensibles aux stimulis externes (balles, fragments, échauffement…). Le but principal des munitions à risques atténués est de réduire la réponse des munitions aux menaces en utilisant, par exemple, des technologies d’atténuation. Beaucoup d’études ont été conduites durant les dernières décennies au sujet des munitions à risques atténués et beaucoup de systèmes ont été conçus pour lutter contre les menaces ou pour en diminuer les effets. Le rapport se concentre sur les technologies d’atténuation pour les têtes militaires et sera utilisé à terme par le MSIAC pour fournir une vue d’ensemble concernant les techniques de pointe d’atténuation pour les munitions insensibles. Le rapport vise à fournir une synthèse des différentes familles de systèmes d’atténuation : protection thermique, système d’évent passif ou actif, matériaux de structure adaptés, barrière, partiteur, agencement et système d’extinction. Le rapport comporte aussi une présentation du concept de munitions à risques atténués et des normes associées (OTAN, France, Etats-Unis…).

Mots-clés : Tête militaire, atténuation, munitions à risques atténués, protection thermique

Contact us for more information: 

Dr Ernie Baker
United States
+32 2 707 3844
Christelle Collet
France
+32 2 707 54 47
Author(s): 
  • Pierre-Antoine Prévot
  • Christelle Collet
  • Dr Ernie Baker