C modeling
==============


Characteristics of modeling
-----------------------------------

     Loads are applied progressively to the end nodes (X=1) of the model

     beam beam:


* step 1: gravity loading


* step 2: thermal loading (rise from 20 to 300°C)


* step 3: irradiation loading (fluence from 20 to 33.1024 neutrons/m²)



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* step 4: loading beam with normal force Fx = 1E7n



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* step 5: loading beam shear force Fy = 1E7n


* step 6: loading beam shear force Fz = 1E7n



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* step 7: reversal loading with normal force Fx = - Fx



.. _DdeLink__7602_3686606288:

* step 8: reversal loading beam shear force Fy = - Fy


* step 9: reversal loading beam shear force Fz = - Fz

     The opposite end (X=0) is the object of a solid body condition allowing a coupling between the unit rotations of the beams and the generalized rotations of the whole (i.e. the grid rotations in the skeleton element model).


Results
----------



The homogenized force field calculated at the node (X=0) using the beam beam model is established as follows for the nine time steps:


.. csv-table::

    "Not", "Fx", "Fy", "Fy", "Fz", "Fz", "Mz", "Mgx", "Mgy", "Mgz"
    "1", "483.85", "0. ", "0. ", "0. ", "0. ", "0. ", "0. ", "-290.315", "-48.385"
    "2", "483.85", "0. ", "0. ", "0. ", "0. ", "0. ", "0. ", "-290.315", "-48.385"
    "3", "483.85", "0. ", "0. ", "0. ", "0. ", "0. ", "0. ", "-290.315", "-48.385"
    "4", "-4999516", "0. ", "0. ", "0. ", "0. ", "0. ", "0. ", "2999709", "499951"
    "5", "-4999516", "-5000000", "0. ", "0. ", "2.908", "-4043821", "-4043821", "-3000000", "2999706", "377106"
    "6", "-4999516", "-5000000", "-5000000", "-5000000", "0. ", "4043827", "-4043824", "-4043824", "-3500000", "3122548", "377109"
    "7", "5000483", "-5000000", "-5000000", "-5000000", "0. ", "4043827", "-4043824", "-4043824", "-3500000", "-2877451", "-622890"
    "8", "5000483", "5000000", "5000000", "-5000000", "0. ", "4043821", "4043818", "4043818", "" 2500000", "-2877445", "-377200"
    "9", "5000483", "5000000", "5000000", "5000000", "0. ", "-4043827", "4043824", "4043824", "3500000", "-3123129", "-377206"