Hardening/aging parameters

For the WesTrack experiment the effect of hardening/aging were estimated from indirect tensile tests done before and after the experiment, adjusted for moduli backcalculated from FWD tests. The value of A was fixed at 0.7 and the value of B is given for each section in the table below. The mean value of B was 0.022 with a coefficient of variation of 0.44. The default value is 0.007.