Results 51 to 60 of about 7,841 (190)

Prediction of near field overpressure from quarry blasting [PDF]

, 2010
This paper investigates the propagation of airblast or pressure waves in air produced by bench blasting (i.e. detonation of the explosive in a row of blastholes, breaking the burden of rock towards the free vertical face of the block).
Ash, Griffiths, Hustrulid, J.A. Sanchidrián, J.F. Domingo, Konya, Kutner, Kuzu, L.M. López, M.F. Ortega, Marchand, Mohanty, P. Segarra, Persson, Rosenthal   +14 more
core   +2 more sources

Primary blast wave protection in combat helmet design: A historical comparison between present day and World War I.

PLoS ONE, 2020
Since World War I, helmets have been used to protect the head in warfare, designed primarily for protection against artillery shrapnel. More recently, helmet requirements have included ballistic and blunt trauma protection, but neurotrauma from primary ...
Joost Op 't Eynde, Allen W Yu, Christopher P Eckersley, Cameron R Bass   +3 more
doaj   +1 more source

Hearing Loss and Irritability Reporting Without Vestibular Differences in Explosive Breaching Professionals

Frontiers in Neurology, 2020
Background: Blast exposure is a potential hazard in modern military operations and training, especially for some military occupations. Helmets, peripheral armor, hearing protection, and eye protection worn by military personnel provide some acute ...
Claire M. Modica, Brian R. Johnson, Christopher Zalewski, Kelly King, Carmen Brewer, John E. King, Angela M. Yarnell, Matthew L. LoPresti, Peter B. Walker, Kristine C. Dell, Kristine C. Dell, Elena Polejaeva, Elena Polejaeva, Alycia Quick, Alycia Quick, Alycia Quick, Bobby Arnold, Bobby Arnold, Bobby Arnold, Eric M. Wassermann, James R. Stone, Stephen T. Ahlers, Walter Carr, Walter Carr   +23 more
doaj   +1 more source

Numerical investigation into the influence of cubicle positioning in large-scale explosive arena trials [PDF]

, 2016
In arena blast testing, a common and economical practice employed is to distribute several targets radially around a central charge. However, if these targets are positioned too proximally, reflections and diffractions of blast waves off neighbouring ...
Payne, T., Rigby, S., Williams, A., Worfolk, T.   +3 more
core   +1 more source

Experimental and numerical study on protective effect of RC blast wall against air shock wave

Defence Technology
Prototype experiments were carried out on the explosion-proof performance of the RC blast wall. The mass of TNT detonated in the experiments is 5 kg and 20 kg respectively. The shock wave overpressure was tested in different regions.
Xin-zhe Nian, Quan-min Xie, Xin-li Kong, Ying-kang Yao, Kui Huang   +4 more
doaj   +1 more source

Simulation and Measurements of Small Arms Blast Wave Overpressure in the Process of Designing a Silencer

Measurement Science Review, 2015
Simulation and measurements of muzzle blast overpressure and its physical manifestations are studied in this paper. The use of a silencer can have a great influence on the overpressure intensity.
Hristov Nebojša, Kari Aleksandar, Jerković Damir, Savić Slobodan, Sirovatka Radoslav   +4 more
doaj   +1 more source

Calculation of Blast Loads for Application to Structural Components. Administrative Arrangement No JRC 32253-2011 with DG-HOME Activity A5 - Blast Simulation Technology Development [PDF]

, 2013
This technical report describes a procedure that can be followed for the calculation of the loads to be applied to a structure as a consequence of a blast.
KARLOS VASILEIOS, SOLOMOS George
core   +1 more source

Experimental investigation of a viscoelastic liner to reduce under helmet overpressures and shock wave reflections

Frontiers in Bioengineering and Biotechnology
IntroductionShock wave overpressure exposures can result in blast-induced traumatic brain injury (bTBI) in warfighters. Although combat helmets provide protection against blunt impacts, the protection against blast waves is limited due to the observed ...
Cody J. H. Thomas, Fatih Dogan, Catherine E. Johnson   +2 more
doaj   +1 more source

Assessing Neuro-Systemic & Behavioral Components in the Pathophysiology of Blast-Related Brain Injury

Frontiers in Neurology, 2013
Among the U.S. military personnel, blast injury is among the leading causes of brain injury. During the past decade, it has become apparent that even blast injury as a form of mild traumatic brain injury (mTBI) may lead to multiple different adverse ...
Firas H Kobeissy, Stefania eMondello, Nihal eTumer, Nihal eTumer, Nihal eTumer, Hale Z Toklu, Melissa A Whidden, Nataliya eKirichenko, Nataliya eKirichenko, Zhiqun eZhang, Victor ePrima, Walid eYassin, Chandra eNamas, John eAnagli, Stanislav eSvetlov, Kevin K W Wang   +15 more
doaj   +1 more source

Air blast parameters close to a liquid propellant explosion [PDF]

Equations for determining air blast parameters close to liquid propellant explosions, and estimated peak overpressure in close ...
Bracco, F. V.
core   +1 more source