Effects of Material Properties of Warhead Casing on Natural Fragmentation Performance of High Explosive (HE) Warhead
This research paper presents numerical studies of the
characteristics of warhead fragmentation in terms of initial velocities,
spray angles of fragments and fragment mass distribution of high
explosive (HE) warhead. The behavior of warhead fragmentation
depends on shape and size of warhead, thickness of casing, type of
explosive, number and position of detonator, and etc. This paper
focuses on the effects of material properties of warhead casing, i.e.
failure strain, initial yield and ultimate strength on the characteristics
of warhead fragmentation. It was found that initial yield and ultimate
strength of casing has minimal effects on the initial velocities and
spray angles of fragments. Moreover, a brittle warhead casing with
low failure strain tends to produce higher number of fragments with
less average fragment mass.
[1] O. B. Zecevic, J. Terzic and A. Catovic, "Influence of warhead case
material on natural fragmentation performances," in 12th DAAAM
International Symposium Vienna, Austria, 2004.
[2] M. T. Shahraini, "Casing toughness effect on anti-air fragmentation
warhead performance," in 23rd International Symposium on
Ballistics, Tarragona, Spain, 2007, pp. 209-213.
[3] P. Cooper, Explosives Engineering. Wiley-VCH 1996, pp. 385-394.
[4] Elements of terminal Ballistics, Part One, Introduction, Kill
Mechenics and Vulnerability, Washington, D.C., 1962, pp. 4-175.
[5] N. F. Mott, "Fragmentation of high explosive shells, A theoretical
formula for the distribution of weights of fragments," 1943.
[6] J. A. Zukas and W. P. Walters, Explosive Effects and Applications.
New York: Springer, 1997, pp. 89-91.
[7] G. Tanapornraweekit and W. Kulsirikasem, "Lethality assessment of
high explosive (HE) warhead with preformed fragments," in 26th
International Symposium on ballistics, Miami, FL, USA, 2011, to be
published.
[1] O. B. Zecevic, J. Terzic and A. Catovic, "Influence of warhead case
material on natural fragmentation performances," in 12th DAAAM
International Symposium Vienna, Austria, 2004.
[2] M. T. Shahraini, "Casing toughness effect on anti-air fragmentation
warhead performance," in 23rd International Symposium on
Ballistics, Tarragona, Spain, 2007, pp. 209-213.
[3] P. Cooper, Explosives Engineering. Wiley-VCH 1996, pp. 385-394.
[4] Elements of terminal Ballistics, Part One, Introduction, Kill
Mechenics and Vulnerability, Washington, D.C., 1962, pp. 4-175.
[5] N. F. Mott, "Fragmentation of high explosive shells, A theoretical
formula for the distribution of weights of fragments," 1943.
[6] J. A. Zukas and W. P. Walters, Explosive Effects and Applications.
New York: Springer, 1997, pp. 89-91.
[7] G. Tanapornraweekit and W. Kulsirikasem, "Lethality assessment of
high explosive (HE) warhead with preformed fragments," in 26th
International Symposium on ballistics, Miami, FL, USA, 2011, to be
published.
@article{"International Journal of Engineering, Mathematical and Physical Sciences:55668", author = "G. Tanapornraweekit and W. Kulsirikasem", title = "Effects of Material Properties of Warhead Casing on Natural Fragmentation Performance of High Explosive (HE) Warhead", abstract = "This research paper presents numerical studies of the
characteristics of warhead fragmentation in terms of initial velocities,
spray angles of fragments and fragment mass distribution of high
explosive (HE) warhead. The behavior of warhead fragmentation
depends on shape and size of warhead, thickness of casing, type of
explosive, number and position of detonator, and etc. This paper
focuses on the effects of material properties of warhead casing, i.e.
failure strain, initial yield and ultimate strength on the characteristics
of warhead fragmentation. It was found that initial yield and ultimate
strength of casing has minimal effects on the initial velocities and
spray angles of fragments. Moreover, a brittle warhead casing with
low failure strain tends to produce higher number of fragments with
less average fragment mass.", keywords = "Detonation, Material Properties, Natural Fragment, Warhead", volume = "5", number = "11", pages = "1704-6", }