Modeling A
==============


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

**POU_D_T**


.. image:: images/100002C200000DBF000009D2698EAD93350BCD41.svg
    :width: 177
    :height: 126


.. _RefImage_100002C200000DBF000009D2698EAD93350BCD41.svg:


.. csv-table::

    "Cutting:", ":math:`\mathrm{N01}` "," :math:`\mathrm{N02}` "," ", "1 stitch SEG2"


Boundary conditions: DDL_IMPO at node :math:`\mathrm{N01}`:


.. code-block:: text
 DX:0., DY:0., DZ:0., DZ:0., DRX :0, DRY :0, DRZ :0


.. csv-table::

    "No time:", ":math:`{10}^{-5}\mathrm{s.}`"
    "Integration NEWMARK "," :math:`\alpha =0.25`, :math:`\delta =0.5`"
    "Integration WILSON "," :math:`\theta =1.4`"



Characteristics of the mesh
----------------------------

Number of knots: 2

Number of meshes and types: 1 mesh SEG2


Tested sizes and results
------------------------------

Without amortization:


.. csv-table::

    "**Instant in sec.**", "**Reference**", "**Aster** **NEWMARK**", "**% difference**", "**Aster** **WILSON**", "**% difference**"
    "2.E—3", "2.4638E—04", "2.4519E—04", "2.4519E—04", "2.4424E—04", "0.86"
    "4.E—3", "8.9141E—04", "8.8948E—04", "1.93", "8.8794E—04", "0.38"
    "6.E—3", "1.6887E—03", "1.6868E—03", "1.6868E—03", "1.6852E—03", "0.20"
    "8.E—3", "2.3337E—03", "2.3325E—03", "2.3325E—03", "2.3316E—03", "0.09"
    "1.E—2", "2.5801E—03", "2.5801E—03", "0.03", "2.5801E—03", "0"
    "1.2E—2", "2.3337E—03", "2.3349E—03", "2.3349E—03", "2.3359E—03", "0.09"
    "1.4E—2", "1.6887E—3", "1.6906E—03", "1.6906E—03", "1.6922E—03", "0.21"
    "1.6E—2", "8.9141E—04", "8.9334E—04", "0.21", "8.9489E—04", "0.4"
    "1.8E—2", "2.4638E—04", "2.4758E—04", "0.48", "2.4854E—04", "0.87"
    "2.E—2", "0.0000", "3.1989E—09", "-", "9.3188E—09", "-"


With amortization:


.. csv-table::

    "**Instant in sec.**", "**Reference**", "**Aster** **NEWMARK**", "**% difference**", "**Aster** **WILSON**", "**% difference**"
    "2.E—3", "2.3775E—04", "2.3662E0—4", "2.3662E0—4", "2.3572E—04", "0.85"
    "4.E—3", "8.3189E—04", "8.3015E—04", "0.21", "8.2877E—04", "0.37"
    "6.E—3", "1.5307E—03", "1.5290E—03", "1.5290E—03", "0.11", "1.5277E—03", "0.2"
    "8.E—3", "2.0704E—03", "2.0694E—03", "2.0694E—03", "2.0686E—03", "0.09"
    "1.E—2", "2.2721E—03", "2.2721E—03", "2.2721E—03", "0. ", "2.2720E—03", "0.004"
    "1.2E—2", "2.0976E—03", "2.0984E—03", "2.0984E—03", "2.0991E—03", "0.07"
    "1.4E—2", "1.6488E—03", "1.6501E—03", "1.6501E—03", "1.6511E—03", "0.14"
    "1.6E—2", "1.1164E—03", "1.1176E—03", "1.1176E—03", "1.1186E—03", "0.2"
    "1.8E—2", "7.0165E—04", "7.0241E—04", "0.11", "7.0302E—04", "0.19"
    "2.E—2", "5.4263E—04", "5.4266E—04", "0.005", "5.4269E—04", "0.01"



notes
---------

After the first two steps of time, the damped solution is obtained with an error of less than :math:`\text{0.2\%}`.