Cylinder Test Wall Velocity Profiles and Product Energy for an Ammonium Nitrate and Aluminum Explosive

Anderson, E. K.; Short, M.; Jackson, S. I.
January 2017
AIP Conference Proceedings;2017, Vol. 1793 Issue 1, p1
Academic Journal
Ammonium nitrate mixed with aluminum powder forms a non-ideal explosive often referred to as ammonal. Non-ideal detonation can result in significant energy release behind the detonation sonic surface that does not contribute to the detonation velocity, but may a ect the expansion energy of the product gases. In this work, we use scaled cylinder expansion tests to characterize the product energy variation with scale for ammonal. The results of two cylinder tests with 50.8-mm and 72.6-mm inner diameters are compared to prior data at other scales. We find that cylinder wall velocity increases with increasing charge diameter and also with increasing charge length.


Related Articles

  • Is Tannerite responsible for the loud "boom" Friday night? Callaway, Wendi // Grand Saline Sun (TX);3/21/2013, Vol. 116 Issue 12, p1 

    The article offers the author's insights on the Tannerite, a legal explosive with ammonium nitrate and aluminum powder, which was reportedly responsible on the explosion that shook several houses in Grand Saline, Texas.

  • Investigation of low detonation velocity emulsion explosives. Sil'vestrov, V. V.; Plastinin, A. V. // Combustion, Explosion, & Shock Waves;Sep2009, Vol. 45 Issue 5, p618 

    Emulsion explosives (EEs) with detonation velocity up to 2–3 km/sec are considered. The compositions contain a large amount of hollow glass microspheres. Examples are given of the use of low detonation velocity EEs to clad metal plates with foils up to 0.1 mm thick and to weld a...

  • Density dependence of detonation velocity for some explosives. Sil’vestrov, V. // Combustion, Explosion, & Shock Waves;Jul2006, Vol. 42 Issue 4, p472 

    The nonmonotonic dependence of the detonation velocity of a cylindrical charge on density for explosives of the 2nd type is due to the effect of the finite charge diameter and is related to an increase in the width of the reaction zone with a reduction in the porosity of the explosive.

  • Theoretical Derivation of a Peak Particle Velocity–Distance Law for the Prediction of Vibrations from Blasting. Luigi Sambuelli // Rock Mechanics & Rock Engineering;Jun2009, Vol. 42 Issue 3, p547 

    Abstract  I would like to suggest a theoretical justification for the mathematical structure of some laws for predicting the maximum particle velocity vibration from blasting operations in the light of some basic notions of elastic and anelastic wave theory. Within this point of view, in...

  • Effect of melting on the critical ignition energy of condensed explosives by a short laser pulse. Khaneft, A.; Duginov, E. // Combustion, Explosion, & Shock Waves;Nov2012, Vol. 48 Issue 6, p699 

    A criterion for the initiation of explosives with a melting point below the ignition temperature by a short laser pulse is obtained. The criterion obtained is in good agreement with numerical solutions of the heat conduction equation in the cylindrical coordinate system. This criterion made it...

  • NEW APPROACH ON BLASTING FOR EXCAVATION. CEVİZCİ, Halim // SDU International Journal of Technological Science;Jun2013, Vol. 5 Issue 1, p104 

    In this study, efficiency of a new method of stemming with plaster was investigated in blast holes and compared with conventional method of stemming with "dry drill cuttings". Drill cuttings is generally used in open pits, quarries and other blast operations as the most common stemming material...

  • Different approaches to determine of the explosion effect, of a homemade explosive, on the structure. Figuli, Lucia; Zvaková, Zuzana // Applied Mechanics & Materials;2015, Vol. 796, p77 

    With the increase in acts of terrorism, the effects of the explosion on structures has become highly topical. The aim of the paper is an analysis of various approaches to determine the response of blast loaded reinforced concrete pillar. Homemade ANFO (Ammonium nitrate + fuel oil) explosive will...

  • BLOOD ON THE TRACKS. Spaeth, Anthony; Fomey, Matt; Macintyre, Donald // Time International (South Pacific Edition);5/3/2004, Issue 17, p9 

    The article reports on a huge explosion at Ryongchon's railway station in South Korea, in which 154 people were killed, and more than 1000 injured. Due to the explosion, the train station had collapsed, and the nearby buildings were also damaged. The explosion occurred because an electric pole...

  • Study of non-conventional fuels for explosives mixes. Resende, Salatiel Assis; e Silva, Valdir Costa; de Lima, Hernani Mota // Rem: Revista Escola de Minas;jul-set2014, Vol. 67 Issue 3, p297 

    The use of ammonium nitrate and fuel oil (ANFO) results in low cost blasting. Such costs may be further reduced by replacing fuel oil with alternative fuels such as biomass (biodiesel, rice straw, corn cob, sugar cane bagasse) and tires residue. This paper investigates the use of other fuels...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics