Title
ANFO and TNT anti-vehicle mine blast: Experimental and numerical observations
Author
Tyler-Street, M.
Leerdam, P.J.
Verhoeven, T.
Publication year
2014
Abstract
Anti-vehicle (AV) mines and Improvised Explosive Devices (IEDs) pose a major threat in recent and current missions. In the latest operational theatres of Iraq and Afghanistan they have been responsible for a significant proportion of all casualties. Understanding both the characteristics and strength of the blast loading from these devices is essential for both the design and evaluation of mine-blast resistant vehicles. As part of this process TNO evaluated a range of TNT and ANFO buried charges. Selected results from these tests are reported here. Whilst TNT is a common military explosive, ANFO is readily available to insurgents and forms the actual threat. A buried charge will focus the blast towards the vehicle due to the explosive interaction with the soil. The loading characteristic from the detonated charge is a combination of the power (brisance) and strength (heave effect) of the explosive. Whilst TNT is more powerful than ANFO with a higher brisance, ANFO has a higher observed strength than TNT with a higher heaving effect. The ANFO and TNT experimental results are being used to develop and validate the TNO Mine Blast Model [1] implemented into the commercial code LSDYNA. This provides a numerically efficient and robust method for simulating a buried mine blast.
Subject
Mechatronics, Mechanics & Materials
EBP - Explosions, Ballistics & Protection
TS - Technical Sciences
Defence Research
Defence, Safety and Security
User defined loading
LS-DYNA
Mine blast
TNT
ANFO
To reference this document use:
http://resolver.tudelft.nl/uuid:76e144ee-715a-482d-966d-a52231ae0819
TNO identifier
514428
Source
23rd MABS - Military Aspects of Blast and Shock, Oxford, United Kingdom, 7-12 September 2014
Document type
conference paper