Numerical Simulation on Damage Effect of Explosion in Multilayer Mediums and Dimensional Analysis

Wang Cheng; Jian Guo Ning

doi:10.4028/www.scientific.net/KEM.348-349.501

Paper Titles

Study on the Prediction of the CO₂ Absorption Quantity in the Concrete According to the Surface-Finishes
p.485

Residual Strength Research for Aluminum Alloy Sheet with Multiple Site Damage
p.489

Two-Parameter Criteria for Ductile Crack Initiation and Propagation in High-Grade Line Pipes
p.493

Effectiveness of Non-Linear Crack Mechanics under Plane Strain Conditions
p.497

Numerical Simulation on Damage Effect of Explosion in Multilayer Mediums and Dimensional Analysis
p.501

A Numerical Method for Predicting the Chloride Diffusivity of Concrete with Interfacial Cracks
p.505

Improvement of MIC Behavior of Low Alloy Steel with Zn-Rich Epoxy Coating
p.509

The Constitutive Model for Isotropic Damage of Geomaterial
p.513

Stochastic Characteristics of Fatigue Crack Propagation for 2024-T3 Aluminium Alloy in Corrosive Environments
p.517

HomeKey Engineering MaterialsKey Engineering Materials Vols. 348-349Numerical Simulation on Damage Effect of Explosion...

Numerical Simulation on Damage Effect of Explosion in Multilayer Mediums and Dimensional Analysis

Abstract:

A multilayer medium consists of compacted soil, gravel and concrete layers. The damage law of multilayer mediums subjected to blast loading is investigated numerically at various charge weights ranging from 1 to 10kg and burying depths ranging from 0 to 150cm. The numerical results indicate that, in order to increase the energy utilization rate of explosives, charges less than 5kg should be placed in the gravel layer to explode, while those more than 5kg placed in the compacted soil layer. By use of dimensional analysis, the formula for damage effect of multilayer mediums subjected to blast loading is consequently derived. Based on regression analysis of the numerical results, the empirical expressions are established for the effects of charge weights and burying depth on the crater radiuses in the concrete layer, the gravel layer and the compacted soil layer. The expressions can be employed to assess the damage effect of charges blasting in multilayer mediums.

You might also be interested in these eBooks

Advances in Fracture and Damage Mechanics VI

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 348-349)

Pages:

501-504

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.348-349.501

Citation:

Cite this paper

Online since:

September 2007

Authors:

Wang Cheng, Jian Guo Ning

Keywords:

Damage Effect, Dimensional Analysis, Multilayer Medium

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Y. Lu, K. Xu: International Journal of Solids and Structures, Vol. 41 (2004), pp.131-143.

Google Scholar

[2] K. Xu, Y. Lu: Computers and Structure, Vol. 84 (2006), pp.431-438.

Google Scholar

[3] Q.M. Tan: Dimensional Analysis (University of Science and Technology of China Press, China 2005) Fig. 9 Fit curve of crater radius in gravel layer -0. 2 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 1. 2 1. 4 -1. 0 -0. 5.

Google Scholar

[1] 0.

Google Scholar

[1] 5 ㏒(R2/W) ㏒(Q 1/3 /W) -0. 4 -0. 2 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 1. 2 1. 4 1. 6 -0. 2 -0. 1.

Google Scholar

8 ㏒(R3/W) ㏒(Q 1/3 /W) Fig. 10 Fit curve of crater radius in compacted soil layer ㏒(H/W) -0. 2 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 1. 2 1. 4.

Google Scholar

[1] 0 ㏒(Q 1/3 /W) Fig. 11 Fit curve of the crater depth ㏒(Q 1/3 /W) -0. 4 -0. 2 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 1. 2 1. 4 1. 6 -1. 5 -1. 0 -0. 5.

Google Scholar

[1] 0.

Google Scholar

[1] 5 ㏒(R1/W) Fig. 8 Fit curve of crater radius in concrete layer.

Google Scholar