...Roxan Cayzac; Eric Carette; Thierry Alziary de Roquefort; François-Xavier Renard; Dominique Roux; Patrick Balbo; Jean-Noël Patry For several years we have been working on the development of a computational fluid dynamics ballistics code called FREIN. This code is the result of a strong cooperation...

.... The transverse impact response of the fiber yarn was also analyzed with a model, which agrees well with the experimental results. The model shows that the longitudinal wave speed is critical in the ballistic performance of the fiber yarn. At a certain striking speed, a higher longitudinal wave speed produces...

...Dixie M. Hisley; James C. Gurganus; Andrew W. Drysdale As modern helmets have become quite capable of defeating the penetration capabilities of ballistic threats, Soldiers may experience head injuries due to blunt trauma caused by helmet back face deformation (BFD). Possible resulting injuries...

... in further firings. The sapphire window can withstand the high pressure and high temperature of the ballistic cycle, but it is necessary to keep the window clean for the laser to transmit repeatedly. In modular charge systems or fully combustible cartridge cases, there is no place to put a shield window...

...Julien Nussbaum; Philippe Helluy; Jean-Marc Herard; Barbara Baschung Complex phenomena occur in a combustion chamber during a ballistic cycle. From the ignition of the black powder in the primer to the exit of the projectile through the muzzle, two-phase gas-powder mix undertakes various transfers...

... to present the results of the internal ballistics numerical simulation of the NAWC tactical motor n. 6, from ignition to burn-out, by means of a quasi-one-dimensional unsteady numerical simulation model, SPINBALL, coupled with a three-dimensional grain burnback model, GREG. In particular, the attention...

...B. Erice; F. Gálvez; D. A. Cendón; V. Sánchez-Gálvez; T. Børvik An experimental and numerical study of ballistic impacts on steel plates at various temperatures (700 °C, 400 °C and room temperature) has been carried out. The motivation for this work is the blade-off event that may occur inside...

...) monoblock glass experiments; (3) single impact bonded glass experiments, and (4) multi-hit experiments. The experiments were conducted to obtain residual velocity V r as a function of impact (striking) velocity V s , including sufficient partial penetrations to calculate a ballistic limit velocity V 50...

...” as a suddenly detected target abrupt motion during the guidance terminal phase. The miss distances obtained are studied and the projectile optimal navigation gain is chosen based on the maximum tolerated miss distance. 25 11 2010 04 03 2011 05 08 2011 05 08 2011 ballistics...

...Sidney Chocron; Trenton Kirchdoerfer; Nikki King; Christopher J. Freitas Ballistic tests were performed on single-yarn, single-layer and ten-layer targets of Kevlar ® KM2 (600 and 850 denier), Dyneema ® SK-65 and PBO ® (500 denier). The objective was to develop data for validation of numerical...

...Bo Janzon 26 03 2011 04 05 2011 27 07 2011 27 07 2011 ballistics This issue of the Journal of Applied Mechanics contains twenty-three scientific papers presented at the 26th ISB, organized by the National Defense Industrial Association (NDIA, www.ndia.org), under...

... that the mathematical model developed gives the correct trend and can provide useful calculated parameters for the structural design of liquid traveling charge. 14 11 2010 24 05 2011 27 07 2011 27 07 2011 ballistics computational fluid dynamics fuel partial differential equations...

... structure can restrain the expansion randomness of the Taylor cavity and leads smooth expansion at each step. In 4 stepped-wall chamber with ΔD/L = 3/40, the interior ballistic performance of BLPG is stable and the consistency of the p-t curves is good. Two-dimensional unsteady model is developed based...

...-volume relationship includes permanent densification and bulking. Damage is accumulated based on plastic strain, pressure and strain rate. Simple (single-element) examples are presented to illustrate the capabilities of the model. Computed results for more complex ballistic impact configurations are also...

... was demonstrated through a few application examples. 05 11 2010 23 12 2010 12 01 2011 16 02 2011 16 02 2011 ballistics impact (mechanical) projectiles statistical analysis stochastic processes weapons Ballistic dispersion is one of the important metrics that has been...

...Bo Janzon 04 05 2010 01 07 2010 ballistics This issue of the Journal of Applied Mechanics contains 19 scientific papers presented at the 25th International Symposium on Ballistics, 17-21 May 2010, organized at Beijing, China, by the Nanjing University of Science...

...Ian G. Cullis; Marc Giraud; Bo Janzon 04 05 2010 01 07 2010 ballistics The silver jubilee of the International Symposium on Ballistics marks three important events: the selection of Beijing as the symposium venue, the founding of the new International Ballistics Society...

... three types of tests have on-board recorders to capture ballistic accelerations. Accelerometer data are used in failure investigations, redesign parts, and to design new projectiles. The purpose of this paper is to compare accelerations from different types of ballistic tests. Comparisons were done...

.... Therefore, the shot ejection process has an important effect on the shot accuracy. The maximum projectile velocity is one of the most important design goals of the interior ballistic process and also is the initial condition for the exterior ballistic process. Most researchers take the muzzle velocity...

... 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...