Assign Gravity | Kratos Multiphysics Documentation

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The python process AssignGravityToMaterialPointProcess assigns a vector value to the material point element variables MP_VOLUME_ACCELERATION and MP_ACCELERATION before the execution of the solution loop. As the name suggests, this process is intended to assign gravity acceleration to the material point elements of a given model part.

Parameters & Defaults

{
    "kratos_module" : "KratosMultiphysics.MPMApplication",
    "python_module" : "assign_gravity_to_material_point_process",
    "Parameters"    : {
        "model_part_name" : "PLEASE_SPECIFY_MODEL_PART_NAME",
        "modulus"         : 1.0,
        "direction"       : [0.0, 0.0, 0.0]
    }
}

`model_part_name`

String identifying the name of the target ModelPart.

`modulus`

Number identifying the modulus of the imposed acceleration.

`direction`

Three-component vector identifying the direction of the applied acceleration.

Important: The vector assigned to the variables MP_ACCELERATION and MP_VOLUME_ACCELERATION is given by modulus * direction, i.e., the scalar value modulus is multiplied to each component of the vector direction. In particular, note that the input vector direction is not normalized.

Source Code

MPMApplication/python_scripts/assign_gravity_to_material_point_process.py