Robert J. Hudson
Investigating the mechanical properties of RDX crystals using nano-indentation
Hudson, Robert J.; Zioupos, Peter; Gill, Philip P.
Authors
Professor Peter Zioupos P.Zioupos@hull.ac.uk
Emeritus Professor of Biomedical Engineering
Philip P. Gill
Abstract
The shock sensitivity of RDX is of major interest for the development of insensitive munitions. Previous research has implied that internal defects that form within RDX crystals have a strong sensitising effect, increasing the probability of shock initiation. During the NATO Reduced sensitivity RDX Round Robin (R 4) program the number of internal defects within RDX crystals of differing qualities were assessed by optical microscopy and a scoring system. The results suggested that RDX crystals with many internal defects were more sensitive. Studies investigating the mechanical properties of bulk RDX have shown that lots consisting of poorer crystals are weaker. This study investigates the mechanical properties of individual crystals from different RDX lots using nano-indentation. It is shown that crystals with many internal defects have reduced modulus of elasticity, stiffness and prone to greater deformation under applied load. The results also show a correlation between these parameters and previously reported shock sensitivity data. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Citation
Hudson, R. J., Zioupos, P., & Gill, P. P. (2012). Investigating the mechanical properties of RDX crystals using nano-indentation. Propellants, Explosives, Pyrotechnics, 37(2), 191-197. https://doi.org/10.1002/prep.201100063
Journal Article Type | Article |
---|---|
Online Publication Date | Mar 29, 2012 |
Publication Date | Apr 1, 2012 |
Deposit Date | Oct 24, 2023 |
Journal | Propellants, Explosives, Pyrotechnics |
Print ISSN | 0721-3115 |
Electronic ISSN | 1521-4087 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 37 |
Issue | 2 |
Pages | 191-197 |
DOI | https://doi.org/10.1002/prep.201100063 |
Keywords | RDX; Nano-indentation; Crystal defects; Mechanical properties; Shock sensitivity |
Public URL | https://hull-repository.worktribe.com/output/4424470 |
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