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خانه / اخبار تایپ شونده / Simulation CEL explosion in the depth of water near the aluminum hull in Abaqus- three sea mine explosion

Simulation CEL explosion in the depth of water near the aluminum hull in Abaqus- three sea mine explosion

In this tutorial, the Simulation CEL explosion in the depth of water near the aluminum hull in Abaqus- three sea mine explosion- has been done. The domain is modeled as a three-dimension Eurlerian part. The hull is modeled as a three-dimensional shell part. The water and three TNT parts are modeled as three-dimensional solid part. You can see a figure of the assembled parts below

Underwater explosion involves many difficult problems, such as problems of fluid–solid coupling and additional water mass and liquid jets. In most cases, damage done to structures occurs early on and is due to the striking of the shock wave. There are many aspects of the underwater explosion event that must be studied in order toproperly understand the development and propagation of the dynamic shock loadingthrough the fluid
To model hull behaviour under the severe load, Johnson-Cook plasticity and damaged is used. The Johnson-Cook plasticity model is a particular type of Mises plasticity model with analytical forms of the hardening law and rate dependence. Abaqus/Explicit provides a dynamic failure model specifically for the Johnson-Cook plasticity model, which is suitable only for high-strain-rate deformation of metals. To model the 3 TNT parts, the JWL equation of state is selected. The Jones-Wilkins-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 Us-Up model also used to model water propertice

Dynamic explicit step with a specific time is so suitable for this type of analysis. All results can be requested from the field or history output. The general contact capability with conctact property is consider. The Eurlerian boundary as Non reflecting is assinged to the domain. The mesh should find to obtain proper results. After the simulation, all results such as stress, strain, damage, wave propagation, blast pressure, …are avaiable. You can some figures for this analysis below

 

You can provide CAE ,INP,and English video files of this simulation here. The cost of these files is Twenty-Nine 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

درباره ی Abaqus

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