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. Author manuscript; available in PMC: 2015 Dec 21.
Published in final edited form as: Phys Med Biol. 2014 Dec 21;59(24):7717–7734. doi: 10.1088/0031-9155/59/24/7717

Figure 8.

Figure 8

The complex shear modulus estimation for five fractional viscoelastic models with the parameters estimated via minimization of square error between experimental data and predicted model over the entire frequency range from 500 Hz to 16 kHz. (a) real part of shear modulus μR versus frequency. (b) imaginary part of shear modulus μI versus frequency. (c) μI versus μR, where the slope of the plot represents the viscoelastic loss factor. (d) normalized root mean square error between the estimated experimental shear modulus and the shear modulus from fitted viscoelastic models.