Figure 13
The horizontal axis is labeled “Porosity, V f” and ranges from 0 to 0.2 in increments of 0.05 units. The vertical axis is labeled “Effective Strain-Rate Sensitivity” and ranges from 0 to 0.2 in increments of 0.02 units. Six series are shown in the legend: “S C m equals 0.0316”, “B C C m equals 0.0316”, “F C C m equals 0.0316”, “S C m equals 0.1633”, “B C C m equals 0.1633”, and “F C C m equals 0.1633”. The three series with m equals 0.1633 start at 0.1633 at zero porosity and decrease steadily to around 0.11–0.12 at 0.2, with small differences among S C (at 0.12), B C C (at 0.11), and F C C (at 0.115). The three series with m equals 0.0316 start at 0.0316 at zero porosity and decrease slightly to around 0.02–0.025 at 0.2. Bracket annotations on the right group the upper curves with the label “m equals 0.1633” and the lower curves with the label “m equals 0.0316”. Note: All numerical data values are approximated.Numerical results for the effective strain-rate sensitivity of the porous materials as a function of porosity, with two different values for the solid matrix used in the modeling