Damage Characterisation of Inhomogeneous Materials: Experiments and Numerical Simulations of Wave Propagation

Strain ◽  
2010 ◽  
Vol 47 (6) ◽  
pp. 525-533 ◽  
Author(s):  
D. G. Aggelis
Keyword(s):  
Wave Propagation ◽  
Numerical Simulations ◽  
Inhomogeneous Materials

Study on Numerical Simulation of Explosion in Soil Based on Fluid-Solid Coupling Arithmetic

2014 ◽  
Vol 580-583 ◽  
pp. 2916-2919
Author(s):  
Juan Song ◽  
Shu Cai Li
Keyword(s):  
Numerical Simulation ◽  
Wave Propagation ◽  
Dynamic Response ◽  
Numerical Simulations ◽  
Soil Medium ◽  
Coupling Process ◽  
Contact Algorithm ◽  
Modeling Simulation ◽  
Propagation Law ◽  
Simulation Results

Numerical simulations play a significant role in explosion in a mass of soil due to an underground explosive. Common methods available in hydrocode for fluid-solid coupling process are contact algorithm, Lagrange algorithm, and Arbitrary Lagrange-Euler (ALE) algorithm. A numerical simulation of explosion process with concentrated charge in a mass of soil was carried out by using three methods in this paper. The dynamic response of soil medium, the formation and development law of explosion cavity and the explosion wave propagation law in soil were simulated. Merits and drawbacks of three different methods are analyzed in the aspect of modeling, simulation results and computing cost.

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