Page 227 - Mechanics of Asphalt Microstructure and Micromechanics
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Models for Asphalt Concrete 219
EP 1 EP n
EP V n+1
V V
(a)
EP1 EP n
E 0
brittle
1(T) n(T)
(b)
FIGURE 7.3 (a) generalized analogical body, (b) viscoplastic DBN model for bituminous mixtures
(Di Benedetto, Ph.D. Dissertation, in French, 1987).
nv
+
Si
+
Virgin loading curve f
E i E i
1
E i
1
1
1 E i
1
E i
E i
E i
1 1
-
Virgin unloading curve f
-
Si
FIGURE 7.4 Major concepts in the DBN model (Benedetto).
