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خانه / اخبار تایپ شونده / Simulation SPH explosion over masonry wall (micro model) in Abaqus and damage investigation

Simulation SPH explosion over masonry wall (micro model) in Abaqus and damage investigation

In this tutorial Simulation SPH explosion over masonry wall (micro model) in Abaqus and damage investigation has been studied.The wall is modeled with concrete bricks and concrete beam as three dimensional parts.The TNT part is modeled as sphere solid part. You can see a figure of this simulation at below

To model correct behavior of concrete blocks under huge pressure at the the short time it is necessary to use proper material model instead CDP and Brittle cracking model.For TNT JWL equation of stat has been used.The Jones-Wilkens-Lee (or JWL) equation of state models the pressure generated by the release of chemical energy in an explosive. This model is implemented in a form referred to as a programmed burn, which means that the reaction and initiation of the explosive is not determined by shock in the material. Instead, the initiation time is determined by a geometric construction using the detonation wave speed and the distance of the material point from the detonation points.

The JWL equation of state can be written in terms of the internal energy per unit mass, , as

where  and  are user-defined material constants;  is the user-defined density of the explosive; and  is the density of the detonation products.

Dynamic explicit procedure is appropriate for this type of analysis. The mortar between blocks has modeled as interaction property between surfaces like cohesive behavior,damage and evolution.

During the simulation the TNT causes a huge pressure and damage on the wall and all damage parameter which requested for wall is achievable. You can see some figures of the results at below

You can provide CAE ,INP,and English video files of this simulation here. The cost of these files is Twenty-Six Euros. you can click on the bellow bottom to beginning process

You can purchase the tutorial through a PayPal account, a Visa, or a Master card,  just before payment,send me an email to this address: karampourp@gmail.com

 

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