Simulation of Hollow Sphere Water Impact Problem Using Eulerain-Lagrangian Method

In this model, you will learn how to use the coupled Eulerian-Lagrangian (CEL) formulation to simulate the hydrodynamics of a free-falling sphere impacting the free surface of the water. A 3D model of a sphere with an unsteady viscous transient flow condition is used for numerical simulation. This simulation considered the problem of a rigid body sphere touching the free surface of a stationary viscous fluid with a variable velocity at time t = 0 and determining the cavity's shape and the rigid sphere's depth for t > 0 using the coupled Eulerian-Lagrangian formulation.

The 2 kg sphere is modelled as shell geometry and a rigid body constraint is applied. The sphere is placed at the water's surface with a specified initial velocity rather than modeling the entire dropping event from the initial point.  An initial velocity of 4 m/s in the normal direction of the water surface corresponds to the speed that would be attained.  The sphere and water are subjected to a gravity load.  An acceleration of 9.8 m/s2 is applied in the normal direction to the water surface. The Wall boundary condition is applied to sides and bottom surfaces of Eulerian domain to simulate the water tank. Displacement of the sphere is not constrained in any direction and can move freely in all directions. 

Price: $10

Attention:

• Please note that this Cae file cannot open in versions lower than Abaqus 6.14.4. 
• After receiving payment, the delivery process will start, and all related files will be sent through email.
• For any help regarding orders, please feel free to contact shwenwe13@gmail.com. Thanks for your support.

Failure of the Pre-stressed Concrete Railway Sleeper

In this model, you will learn the failure of railway sleepers, concrete structures with reinforced steel cores and evaluate the load-carrying capacity of the pre-stressed concrete sleepers using ABAQUS software. 

The sleeper is a fundamental component of the railway track's superstructure. In summary, its primary functions are to support the rails, maintaining the track's axis, and transmit the actions of the vehicle axles to the ballast. These functions necessitate providing the sleeper with a high level of strength, which generally results in a high level of stiffness; however, it is also necessary to have a certain level of elasticity, as it must be able to withstand extremely high impact forces. The application of pre-stressed rebar is intended to improve the durability of sleepers in a railway operating environment subjected to repeated impact loads.

Price: $10

Attention:

• Please note that this Cae file cannot open in versions lower than Abaqus 6.14.4. 
• After receiving payment, the delivery process will start, and all related files will be sent through email.
• For any help regarding orders, please feel free to contact shwenwe13@gmail.com. Thanks for your support.