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Keywords: projectiles
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Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2011, 78(5): 051021.
Published Online: August 8, 2011
..., the impact speed at which a yarn breaks based on this classical theory is not correct; it has been experimentally noted that yarns break when impacted at a lower speed. This paper explores the mechanism of yarn breakage. The problem of the transverse strike of a yarn by a flat-faced projectile...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2011, 78(5): 051017.
Published Online: August 5, 2011
...Dimitrios N. Gkritzapis; Elias E. Panagiotopoulos The present study investigates the effects of in bore-yaw phenomenon on lateral throw-off and aerodynamic jump behavior for small caliber rotational symmetric (both in configuration and mass distribution) projectiles launched horizontally...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2011, 78(5): 051015.
Published Online: August 5, 2011
...Qiao Luo; Xiaobing Zhang One of the key technologies of stacked projectile weapons is projectile positioning. However, the present projectile positioning structures have their respective advantages and shortcomings. A new structure based on the self-locking principle is put forward in this paper...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2011, 78(5): 051009.
Published Online: August 5, 2011
...Timo Sailaranta; Ari Siltavuori Guided projectile terminal phase against target at ground level is investigated using an adjoint simulation. A pseudo-optimal projectile navigation gain is looked for against a target disturbing the projectile guidance. The use of counter-measures is “modeled...
Topics: Projectiles
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2011, 78(5): 051002.
Published Online: July 27, 2011
... to the motion of the system’s payload in the tube. The numerical code is well validated by comparing its predictions with the experimental results. The calculated pressure-time profiles and projectile muzzle velocity are in good agreement with the experimental data. The numerical results show...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2011, 78(5): 051004.
Published Online: July 27, 2011
...Tarek Bengherbia; Yufeng Yao; Pascal Bauer; Marc Giraud; Carl Knowlen The subdetonative propulsion mode using thermal choking has been studied with a one-dimensional (1D) real gas model that included projectile acceleration. Numerical results from a control volume analysis that accounted...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2011, 78(5): 051005.
Published Online: July 27, 2011
...Roxan Cayzac; Eric Carette; Pascal Denis; Philippe Guillen An overview of the Magnus effect of projectiles and missiles is presented. The first part of the paper is devoted to the description of the physical mechanisms governing the Magnus effect. For yawing and spinning projectiles, at small...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2011, 78(3): 031015.
Published Online: February 16, 2011
...Michael M. Chen This study quantifies the contribution of variant projectile velocity at a gun muzzle to its dispersion at an aim point from an analytical approach. The dispersion was formulated on the basis of stochastic physical conditions including potential crosswind effect. As a result...
Topics: Projectiles
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051602.
Published Online: July 1, 2010
... investigations are completed and parts may be redesigned. For instance, the 155 mm projectile Excalibur uses several types of tests to find failures and build reliability. Components are tested in a rail gun, a new soft-catch gun, and in soft recovery vehicles. With the rail gun, test projectiles are fired from...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051804.
Published Online: June 30, 2010
... requirements. 22 08 2009 03 02 2010 05 05 2010 30 06 2010 30 06 2010 detonation explosives military equipment projectiles weapons Paper No. ISB '10 05-013. This article deals with a technical approach for modeling and estimating requirements for countering...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051901.
Published Online: June 30, 2010
... by the Chapman–Jouguet’s point. Scattering of products of detonation and their influence on the liner of the RPG-7M projectile are described with the use of equations of the hydrodynamics for the cylindrical symmetry. The results of the simulation process of the impact of AP ammunition of 7.62 mm, 12.7 mm, 14.5...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051406.
Published Online: June 10, 2010
...Wei Yu; Xiaobing Zhang During a gun firing, the flow around a projectile will be developing and changing. In particular, the flow around the projectile is disturbed significantly when the projectile overtakes the muzzle flow. Furthermore, the projectile body pressure will also change substantially...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051802.
Published Online: June 10, 2010
... penetrator of the new design are presented in this paper. 01 09 2009 04 05 2010 05 05 2010 10 06 2010 10 06 2010 ballistics military vehicles projectiles weapons terminal ballistic penetration segmented penetrator steel armor Paper No. ISB '10 05-029...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051405.
Published Online: June 9, 2010
...Chenli Tao; Yurong Zhang; Sanqun Li; Changzhi Jia; Yongjian Li; Xifa Zhang; Zhengjia He The erosion and wear in the gun barrel will get worse with an increase in the number of projectiles fired. Generally speaking, the ballistic performance of the gun, measured through indicators...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051801.
Published Online: June 9, 2010
... Atlantic Treaty Organization (NATO) Ball projectile. Previously reported experimental work has confirmed the numerically based assumption that the bodywork effect was due to the flattening of the tip of the projectile upon perforation of the frontal bodywork plate prior to hitting the integrated armor...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051502.
Published Online: May 21, 2010
... and supersonic by solving the Laplace equation and the Bessel function of imaginary argument, and analyze the phenomena of wrap-around fin rolling moment generation at angle of attack zero, and discuss the reason. The flow field of a projectile with wrap-around fins is solved by numerical method to check...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051402.
Published Online: May 17, 2010
...Xin Lu; Yanhuang Zhou; Yonggang Yu Cased telescoped ammunition (CTA) is a kind of charge structure with projectile embedded in the cartridge case. The advantages of CTA, compared with concepts using conventional ammunition, are: (1) reduced charge/ammunition volume, (2) improved performance, and (3...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051601.
Published Online: May 17, 2010
...Xiao-bing Zhang; Ying-ze Wang Rarefaction wave gun (RAVEN) propulsion has renewed interest in the fundamental limits of recoil reductions attainable by redirecting propellant gases rearward from a gun without compromising the projectile propulsion. Compared with a conventional gun there is a great...
Journal Articles
Article Type: Advances In Impact Engineering
J. Appl. Mech. September 2009, 76(5): 051304.
Published Online: June 15, 2009
...Alireza Forghani; Reza Vaziri This paper presents a robust computational model for the response of composite laminates to high intensity transverse dynamic loading emanating from local impact by a projectile and distributed pressure pulse due to a blast. Delaminations are modeled using a cohesive...
Journal Articles
Article Type: Advances In Impact Engineering
J. Appl. Mech. September 2009, 76(5): 051302.
Published Online: June 12, 2009
...A. Kane; T. Børvik; O. S. Hopperstad; M. Langseth In this paper, the influence of mesh sensitivity on the fracture predictions during penetration and perforation of hardened blunt-nose cylindrical steel projectiles in plates of Weldox 460E, Weldox 700E, and Weldox 900E steel has been studied...