Superposition of small deformations
===================================

If the deformations are small, the elastic properties of bodies stay the same under deformations.
If several forces act on a body, its total deformation can be computed from the deformations of
the individual forces, however these deformations must be small.

**Conditions:**

#. The deformations are small.

**Links:**

#. `Wikipedia, general information can be found here <https://en.wikipedia.org/wiki/Infinitesimal_strain_theory>`__.

.. py:currentmodule:: symplyphysics.laws.dynamics.deformation.superposition_of_small_deformations

.. py:data:: total_strain

    Total :attr:`~symplyphysics.symbols.classical_mechanics.strain` of the body.

Symbol:
    :code:`e`

Latex:
    :math:`e`

Dimension:
    :code:`dimensionless`


.. py:data:: first_strain

    :attr:`~symplyphysics.symbols.classical_mechanics.strain` caused by one force.

Symbol:
    :code:`e_1`

Latex:
    :math:`e_{1}`

Dimension:
    :code:`dimensionless`


.. py:data:: second_strain

    :attr:`~symplyphysics.symbols.classical_mechanics.strain` caused by another force.

Symbol:
    :code:`e_2`

Latex:
    :math:`e_{2}`

Dimension:
    :code:`dimensionless`


.. py:data:: law

    :code:`e = e_1 + e_2`


    Latex:
        .. math::
            e = e_{1} + e_{2}