Numerical Estimation of Variation of Pressure and Temperature of Expanding Blast Wave with Time due to Detonation of High Explosives in Air

2021 ◽  
Author(s):  
A. Srinivas Kumar ◽  
T. V. S. L Satyavani ◽  
V. Dharma Rao
Keyword(s):  
Blast Wave ◽  
Numerical Estimation ◽  
High Explosives

Numerical study on the effect of the initiation process of cylindrical high explosives on the blast-wave behavior

Shock Waves ◽  
2021 ◽  
Author(s):  
Y. Sugiyama ◽  
T. Homae ◽  
T. Matsumura ◽  
K. Wakabayashi
Keyword(s):  
Blast Wave ◽  
Numerical Study ◽  
High Explosives ◽  
Initiation Process

Blast Wave Experiments of High Explosives

2017 ◽  
pp. 113-120
Author(s):  
Isabelle Sochet
Keyword(s):  
Blast Wave ◽  
High Explosives

Blast Wave Effects from Internal Explosion of Subsurface Explosive Storage Facility

2011 ◽  
Vol 82 ◽  
pp. 663-668 ◽  
Author(s):  
Yoshio Nakayama ◽  
Kunihiko Wakabayashi ◽  
Tomoharu Matsumura ◽  
Mitsuaki Iida
Keyword(s):  
Blast Wave ◽  
Large Scale ◽  
Mass Effect ◽  
Blast Waves ◽  
Safe Distance ◽  
High Explosives ◽  
Scale Models ◽  
Internal Explosion ◽  
Wave Effects ◽  
New Type

To reduce safe distance such as inhabited building distance (IBD), a new type magazine, which is referred to as a subsurface magazine, has been proposed and the explosion effects have been discussed. We have conducted explosive tests by using relatively large scale models (23 kg and 78 kg in mass) and examined mass effect (scale effect) of blast waves caused by explosion of high explosives. The magazines were composed of a arch-type explosive storage room with a line hinge along the top of the roof of the wall, a square passage way to ground which will release the blast wave. Explosion hazards from the explosion of subsurface magazines were collected to understand the characteristics of airblast, fragments, and ground shocks. Safety criteria for the subsurface magazine are discussed based on the experimental results.

Blast-Wave Clearing for Detonations of High Explosives

2019 ◽  
Vol 145 (7) ◽  
pp. 04019049 ◽  
Author(s):  
Jinwon Shin ◽  
Andrew S. Whittaker
Keyword(s):  
Blast Wave ◽  
High Explosives

Numerical Estimation of the Spatial Resolution of Thermal NDT Techniques Based on Flash Heating

1991 ◽  
Vol 3 (1) ◽  
pp. 125-139
Author(s):  
J. Rantala ◽  
J. Hartikainen
Keyword(s):  
Spatial Resolution ◽  
Numerical Estimation

Under- and Over-Estimation

2011 ◽  
Vol 58 (1) ◽  
pp. 39-49 ◽  
Author(s):  
Virginie Crollen ◽  
Julie Castronovo ◽  
Xavier Seron
Keyword(s):  
Empirical Data ◽  
Accurate Estimation ◽  
Numerical Estimation ◽  
Production Task ◽  
Estimation Task ◽  
Reproduction Task ◽  
Perception Task ◽  
Adult Participants ◽  
Mapping Hypothesis ◽  
Task Perception

Over the last 30 years, numerical estimation has been largely studied. Recently, Castronovo and Seron (2007) proposed the bi-directional mapping hypothesis in order to account for the finding that dependent on the type of estimation task (perception vs. production of numerosities), reverse patterns of performance are found (i.e., under- and over-estimation, respectively). Here, we further investigated this hypothesis by submitting adult participants to three types of numerical estimation task: (1) a perception task, in which participants had to estimate the numerosity of a non-symbolic collection; (2) a production task, in which participants had to approximately produce the numerosity of a symbolic numerical input; and (3) a reproduction task, in which participants had to reproduce the numerosity of a non-symbolic numerical input. Our results gave further support to the finding that different patterns of performance are found according to the type of estimation task: (1) under-estimation in the perception task; (2) over-estimation in the production task; and (3) accurate estimation in the reproduction task. Moreover, correlation analyses revealed that the more a participant under-estimated in the perception task, the more he/she over-estimated in the production task. We discussed these empirical data by showing how they can be accounted by the bi-directional mapping hypothesis ( Castronovo & Seron, 2007 ).

High Explosives

1915 ◽  
Vol 80 (2067supp) ◽  
pp. 104-105
Author(s):  
L. S. Marsh
Keyword(s):  
High Explosives

CONVERSION OF HIGH EXPLOSIVES

1997 ◽  
Vol 4 (1-6) ◽  
pp. 155-166
Author(s):  
Paul Wanninger
Keyword(s):  
High Explosives

An investigation of the interaction of a blast wave with an internalstructure

1993 ◽  
Author(s):  
FRANK MARCONI
Keyword(s):  
Blast Wave
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