FIGURE 5.
Values of the shear modulus μ and bending modulus B calculated as described in the text compared with experimental values measured by different methods as reported in the literature. The calculated values, LS, SS, LL, and SL (·), refer to the combinations of k and D used in the calculations (see caption of Fig. 2). The shaded horizontal boxes enclosed by solid lines represent the range of experimental values reported by different authors (mean ± SD or range of values) for the shear modulus μ (10−6 N/m), whereas the vertical boxes enclosed by dotted lines represent the range of values reported for the bending modulus B (10−20 J). The method of measurement is also indicated. Strey et al. (2) report a value for both μ and B estimated by flicker measurements; the value of B is indicated by the width of the box, but their value of μ was <0.16 (10−6 N/m), and therefore the height of the box is not a true indication of their reported modulus.