-2
-4
Figure 4-2
1-
y = -0.0722x +
R2
R 1
5.5655
5.5655
0 20 40 60 80 100 120
Temperature (OF)
12. Shift function for fine-graded GAF1 mixture.
s Predicted
10Odc
2 A 30dc
S40dc
-J
1
-6 -4 -2 0 2 4 6
Log reduced frequency
Figure 4-23. Master curve for coarse-graded GAC 1 mixture.
Dynamic Modulus Calculated from Predictive Regression Equations
The complex modulus test is relatively difficult and expensive to perform.
Therefore, numerous attempts have been made to develop regression equations to