|Table of Contents|

Numerical Analysis of Explosion Process in Soil(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年01期
Page:
96-99,17
Research Field:
Publishing date:
2011-03-20

Info

Title:
Numerical Analysis of Explosion Process in Soil
Author(s):
ZHAO Jun-hai1;  FENG Hong-bo2;  TIAN Hong-wei3;  WEI Xue-ying1
1. School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China; 2. Wuhan Architectural Design Institute, Wuhan 430014, Hubei, China; 3. Kunshan Architectural Deign Co., Ltd., Kunshan 215300, Jiangsu, China
Keywords:
explosion in soil;  concentrated charge;  radius of explosion cavity;  scale distance;  peak pressure
PACS:
TU431
DOI:
-
Abstract:
A numerical simulation of explosion process with concentrated charge in soil was carried out by using finite element analysis software ANSYS/LS-DYNA. The dynamic response of soil medium, the formation and development law of explosion cavity and the explosion wave propagation law in soil were investigated. The results indicate that the radius of explosion cavity is about seven times original radius of concentrated charge. When the wave-amplitude face of explosion wave gets to the testing elements, pressure at that position increases to a peak value of overpressure instantly and then gradually decreases with time. The peak pressure falls obviously with increasing of scale distance. The numerical simulation results agree well with the theoretical calculation results.

References:

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Memo

Memo:
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Last Update: 2011-03-20