@staticmethod
def eccentricity_from_strain(load, strain, moi, dist, young=None):
    """
        Load eccentricity based on strain pairs.

        Calculate the eccentricity of an axial load to the neutral axis of a specimen for which pairs of strains are
        monitored with strain gauges. The eccentricity is calculated on one axis and requires the moment of inertia around
        it and a pair of strains on tow positions symmetric to the neutral axis.
        Elastic behaviour is assumed.
        """
    if young is None:
        young = 210000.0
    else:
        young = float(young)
    ecc = (strain[0] - strain[1]) * young * moi / (2 * load * dist)
    return ecc
