Notations
=========


.. image:: images/Object_141.svg
    :width: 13
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.. _RefImage_Object_141.svg:

total strain tensor


.. image:: images/Object_142.svg
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Tensor of the deformations of natural creep


.. image:: images/Object_143.svg
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.. _RefImage_Object_143.svg:

elastic deformation tensor


.. image:: images/Object_144.svg
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spherical part of the natural creep strain tensor


.. image:: images/Object_145.svg
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reversible spherical part of the natural creep strain tensor


.. image:: images/Object_146.svg
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.. _RefImage_Object_146.svg:

irreversible spherical part of the natural creep deformation tensor


.. image:: images/Object_147.svg
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.. _RefImage_Object_147.svg:

Deviatoric part of the tensor of natural creep deformations


.. image:: images/Object_148.svg
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.. _RefImage_Object_148.svg:

reversible deviatoric part of the tensor of natural creep deformations (contribution of absorbed water)


.. image:: images/Object_149.svg
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    :height: 26


.. _RefImage_Object_149.svg:

irreversible deviatory part of the tensor of the deformations of natural creep (contribution of free water)


.. image:: images/Object_150.svg
    :width: 13
    :height: 26


.. _RefImage_Object_150.svg:

total stress tensor


.. image:: images/Object_151.svg
    :width: 13
    :height: 26


.. _RefImage_Object_151.svg:

spherical part of the stress tensor


.. image:: images/Object_152.svg
    :width: 13
    :height: 26


.. _RefImage_Object_152.svg:

deviatoric part of the stress tensor


.. image:: images/Object_153.svg
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    :height: 26


.. _RefImage_Object_153.svg:

internal relative humidity


.. image:: images/Object_154.svg
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.. _RefImage_Object_154.svg:

elastic modulus of stiffness at expansion


.. image:: images/Object_155.svg
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.. _RefImage_Object_155.svg:

apparent stiffness associated with the skeleton formed by hydrate blocks at the mesoscopic scale


.. image:: images/Object_156.svg
    :width: 13
    :height: 26


.. _RefImage_Object_156.svg:

apparent stiffness intrinsically associated with hydrates at the microscopic scale


.. image:: images/Object_157.svg
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.. _RefImage_Object_157.svg:

stiffness associated with the capacity of adsorbed water to transmit loads (*load bearing water*)


.. image:: images/Object_158.svg
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    :height: 26


.. _RefImage_Object_158.svg:

elastic shear modulus


.. image:: images/Object_159.svg
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.. _RefImage_Object_159.svg:

apparent viscosity associated with the mechanism of inter-lamellar diffusion


.. image:: images/Object_160.svg
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.. _RefImage_Object_160.svg:

apparent viscosity associated with the diffusion mechanism within the capillary porosity


.. image:: images/Object_161.svg
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.. _RefImage_Object_161.svg:

viscosity of free water.


.. image:: images/Object_162.svg
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    :height: 26


.. _RefImage_Object_162.svg:

viscosity associated with water adsorbed by hydrate sheets

:math:`{\eta }^{\mathit{fd}}` viscosity of desiccation creep

:math:`\chi` creep-damage coupling coefficient


.. image:: images/Object_163.svg
    :width: 13
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.. _RefImage_Object_163.svg:

designate respectively a scalar, a vector and a tensor of order 2.


.. image:: images/Object_164.svg
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.. _RefImage_Object_164.svg:

denote respectively the value of the quantity *x* at time

.. image:: images/Object_165.svg
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.. _RefImage_Object_165.svg:

, at the time

.. image:: images/Object_166.svg
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.. _RefImage_Object_166.svg:

and the variation of

.. image:: images/Object_167.svg
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.. _RefImage_Object_167.svg:

during the interval

.. image:: images/Object_168.svg
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.. _RefImage_Object_168.svg:

.