Influence of ZnO on its elastic moduli
and comparison of elastic moduli
obtained experimentally and elastic moduli
obtained theoretically were also discussed.
Therefore, LBs have the highest elastic moduli
as well, with 86.27 GPa, 35.20 GPa, 99.31 GPa, and 52.38 GPa for LB4's E, G, L, and K, respectively.
The elastic moduli
plotted based on the theoretical model in Figure 3 show similar trend to the experimental results.
Kromp, "A novel resonant beam technique to determine the elastic moduli
in dependence on orientation and temperature up to 2000[degrees]C," Review of Scientific Instruments, vol.
After the annealing, neither the uniaxially stretched nor magnetically oriented films exhibited a remarkable increase in elastic moduli
measured at room temperature.
The elastic modulus of the magnetically oriented films was lower than that of the mechanically oriented films of the same orientation degree, but it was comparable to or even higher than the elastic moduli
of the mechanically oriented films of lower orientation degrees.
Therefore, we conclude that the series and parallel coupling schemes of the aggregate model can only provide bounds, and it is not justified to use either scheme to obtain precise values for the elastic moduli
. Table 1.
Wu, "On the parameterization of the elastic moduli
of two-phase materials," Journal of Applied Mechanics, vol.
(2) The elastic moduli
of the directionally distributed SFRC given by the theory of composite materials and the semiempirical formulas all differ from the experimental values.
Since for porous material elastic moduli
is a function of porosity [15, 16], ultrasound velocity in homogeneous material would depend on porosity.
Rodriguez, Queiroz, Espinosa, and Zandonadi (2006) determined the elastic moduli
of coffee stems by considering the stems as cantilever beams with a concentrated mass at the free end.
Curves were plotted using Microsoft Excel for each material for comparison The results showed that the elastic moduli
increased at all times in the following order; Cavex Cream Alginate(r)> Tulip(r)> Cavex Color Change(r)> TOL (r)> Cavex CA37(r) and the rate of increase was greater at the end of working time, and later decreased.