نتایج جستجو برای: blast wave

تعداد نتایج: 238957  

Journal: :journal of mining and environment 2016
a. siamaki h. bakhshandeh amnieh

a considerable amount of energy is released in the form of shock wave from explosive charge detonation. shock wave energy is responsible for the creation of crushing and fracture zone around the blast hole. the rest of the shock wave energy is transferred to rock mass as ground vibration. ground vibration is conveyed to the adjacent structures by body and surface waves. geological structures li...

ژورنال: مواد پرانرژی 2016

As the computation power developing, the simulation of the explosion blast wave becomes more accurate and much more codes and softwares designed for this purpose. Besides the numerical methods, there are some other effectives like: turbulence model, equation of state and the explosion models which affect the accuracy of the blast wave simulation results. This paper reviewed the numerical method...

A considerable amount of energy is released in the form of shock wave from explosive charge detonation. Shock wave energy is responsible for the creation of crushing and fracture zone around the blast hole. The rest of the shock wave energy is transferred to rock mass as ground vibration. Ground vibration is conveyed to the adjacent structures by body and surface waves. Geological structures li...

Journal: :annals of military and health science research 0
محمدحسین لشگری mohammad hossein lashkari department of surgery, aja university of medical sciences, tehran, iran.دانشگاه علوم پزشکی آجا مهدی نویدبخش mehdi navidbakhsh school of mechanical engineering, iran university of science and technology, tehran, iran.دانشگاه علم و صنعت ایران کامبیز کنگرلو kambiz kangarlou postdoctoral researcher, school of mechanical engineering, iran university of science and technology, tehran, iran.دانشگاه علم و صنعت ایران

purpose: in recent years high explosive bomb attacks have been increasingly directed against   civil structures by various terrorist organizations. this paper describes a numerical method for   assessing the interaction of high explosive air blast within the complex geometrical type of a   congested urban environment.   materials and methods: the first step in predicting blast effects on a targ...

Journal: :international journal of marine science and engineering 2013
m. tajari f. azarsina n. ashrafi khorasani

explosion and fire on an offshore rig can lead to its minor or complete damage and sinking which means the loss of life or environmental pollution. hence the use of techniques such as blast wall is crucial to reduce the detrimental effects. these blast walls are designed for explosion wave of length between 0.1 to 1 of load mainly to protect the personnel and critical sections. in this research...

Journal: :international journal of marine science and engineering 0
m. tajari department of marine industries, faculty of marine science and technology, science and research branch, islamic azad university f. azarsina department of marine industries, faculty of marine science and technology, science and research branch, islamic azad university n. ashrafi khorasani faculty of mechanical and aerospace engineering, science and research branch, islamic azad university

explosion and fire on an offshore rig can lead to its minor or complete damage and sinking which means the loss of life or environmental pollution. hence the use of techniques such as blast wall is crucial to reduce the detrimental effects. these blast walls are designed for explosion wave of length between 0.1 to 1 of load mainly to protect the personnel and critical sections. in this research...

F. Azarsina, M. Tajari N. Ashrafi Khorasani

Explosion and fire on an offshore rig can lead to its minor or complete damage and sinking which means the loss of life or environmental pollution. Hence the use of techniques such as blast wall is crucial to reduce the detrimental effects. These blast walls are designed for explosion wave of length between 0.1 to 1 of load mainly to protect the personnel and critical sections. In this research...

Journal: :Journal of neuroscience methods 2011
Mikulas Chavko Tomas Watanabe Saleena Adeeb Jason Lankasky Stephen T Ahlers Richard M McCarron

Exposure to a blast wave generated during an explosion may result in brain damage and related neurological impairments. Several mechanisms by which the primary blast wave can damage the brain have been proposed, including: (1) a direct effect of the shock wave on the brain causing tissue damage by skull flexure and propagation of stress and shear forces; and (2) an indirect transfer of kinetic ...

2016
Praveen Akula Yi Hua Linxia Gu

Purpose The role of ear canal in transmitting blast waves to the brain is not clear. The goal of this work is to characterize the influence of ear canal on blast-induced mild traumatic brain injury through a computational approach. Methods A three-dimensional human head model with single-side ear canal details was reconstructed from computed tomography images. The ear canal was positioned eithe...

Journal: :Journal of the Royal Army Medical Corps 2001
I G Cullis

The paper defines and describes blast waves, their interaction with a structure and its subsequent response. Explosions generate blast waves, which need not be due to explosives. A blast wave consists of two parts: a shock wave and a blast wind. The paper explains how shock waves are formed and their basic properties. The physics of blast waves is non-linear and therefore non-intuitive. To unde...

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