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Study on Different Soil Explosion Resistance

 In this project, I modeled three different soil materials to study on their explosive resistance with respect to 1400Kg TNT explosion.

 1-      Clay Soil

2-      Saturated Sandy Soil

3-      Dry Sandy Soil

 

The finite element model is depicted bellow. Since I have employed ALE formulation to simulate explosive pressure in both air and soil material, solid air and explosive element have been considered as 1 point ALE multi-material element ALE (Elform 11). On the other hand, soil elements have been defined with Lagrangian formulation.

With use of new algorithm in Default Continuum Treatment at *Control_ALE command, analysis can be performed with better accuracy.

Here are the material properties which have used in this study.

Clay Soil inputs: Mat_Soil_And_Foam (MAT_005)

Saturated Sandy Soil inputs: Mat_Geological_Cap_Model (MAT_025)

Dry Sandy Soil inputs: Mat_Geological_Cap_Model (MAT_025)

 

Results:

The following figure illustrates different responses of soils to a constant mass of TNT. It can be clearly seen that deepest hole would be created in loose clay soil. In contrast, explosion in saturated soil would result in smallest hole radius but more soil in top of the free surface.

 

 

Last modified on 18/06/2015

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Javad Mehrmashhadi

Javad Mehrmashhadi is the owner of CAE-Solutions.

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