added examples for j2

trunk/material.config

@@ -33,16 +33,28 @@ Ngrains	4
 <phase>
 #####################
 
-[Aluminum]
+[Aluminum]  # below given format will not work. need to select one constitution block from it.
 
+constitution            j2
+c11                      110.9e9
+c12                      58.34e9
+(output)                flowstress
+(output)                strainrate
+taylorfactor
+s0                      31e6
+gdot0                   0.001
+n                       20
+h0                      75e6
+s_sat                   63e6
+w0                      2.25
+
+constitution            phenomenological
 lattice_structure        1
 Nslip                    12
-
 c11                      106.75e9
 c12                      60.41e9
 c44                      28.34e9
 
-# constitution            phenomenological
 (output)                slipresistance
 (output)                rateofshear
 s0_slip                 31e6