Zobrazeno 1 - 10
of 12
pro vyhledávání: '"N. J. Whitworth"'
Publikováno v:
AIP Conference Proceedings.
Two shock-release-shock plate impact experiments were performed on HMX-based explosive targets using a 50 mm bore single stage gas gun. The shock-release-shock magnitudes were approximately 2.5-1.0-4.3 GPa. Prior to these shots a series of inert expe
Publikováno v:
AIP Conference Proceedings.
Why model hollow stretching jets? As well as offering some interesting new mathematics, the dynamics of such jets are of potential interest in the consideration of methods of creating circular penetration cuts into targets, in understanding better th
Autor:
N. J. Whitworth, M. Childs
Publikováno v:
AIP Conference Proceedings.
A key input parameter to Detonation Shock Dynamics models is the angle that the propagating detonation wave makes with the charge edge. This is commonly referred to as the boundary angle, and is a property of the explosive/confiner material combinati
Autor:
N. J. Whitworth, B. D. Lambourn, Mark Elert, Michael D. Furnish, William W. Anderson, William G. Proud, William T. Butler
Publikováno v:
AIP Conference Proceedings.
The CREST reactive burn model uses entropy‐dependent reaction rates to simulate behaviour in plastic bonded explosives. A CREST model for the TATB‐based explosive PBX 9502, described at the last conference, was shown to able to predict a range of
Autor:
B. D. Lambourn, N. J. Whitworth, C. A. Handley, H. R. James, Mark Elert, Michael D. Furnish, William W. Anderson, William G. Proud, William T. Butler
Publikováno v:
AIP Conference Proceedings.
In many reactive flow models for explosives, the non‐reacted and detonation products equations of state are treated independently, each just matching some appropriate experimental data. As a result, the two equations of state usually conflict in so
Autor:
K. L. Finn, H. R. James, N. J. Whitworth, C. A. Handley, Mark Elert, Michael D. Furnish, William W. Anderson, William G. Proud, William T. Butler
Publikováno v:
AIP Conference Proceedings.
In recent years a comprehensive suite of gas‐gun particle velocity gauge experiments have been conducted at Los Alamos National Laboratory. Detailed analysis of this data has led to advances in the understanding of the shock to detonation transitio
Publikováno v:
AIP Conference Proceedings.
CREST is a new reactive burn model that uses entropy‐dependent reaction rates to model shock initiation and detonation behaviour in plastic bonded explosives. To date the model has been successfully applied to a wide range of one‐dimensional shoc
Autor:
B. D. Lambourn, N. J. Whitworth, C. A. Handley, H. R. James, Mark Elert, Michael D. Furnish, Ricky Chau, Neil Holmes, Jeffrey Nguyen
Publikováno v:
AIP Conference Proceedings.
PBX9502 is an insensitive high explosive comprising 95% TATB and 5% Kel‐F. Like some liquids, the shock velocity—particle velocity relation for non‐reacted PBX9502 is initially curved, but tends to a linear relation for stronger shocks. Because
Autor:
N. J. Whitworth
Publikováno v:
AIP Conference Proceedings.
Previously we numerically studied “hot‐spot” formation in an explosive material as a result of shock induced pore collapse via microscale one‐dimensional hydrocode simulations. Following this work, a simple model of the shock compaction proce
Autor:
J. R. Maw, N. J. Whitworth
Publikováno v:
AIP Conference Proceedings.
Work is underway to develop a new reactive flow model for heterogeneous solid explosives that will explicitly take account of the microstructure of the explosive. As the first step in our undertaking, a 1D Lagrangian multi-material hydrocode, incorpo