Time-Dependency of the Concrete Model in 3D

Hello,

currently I'm working with PLAXIS 3D Version 2018.01 trying to model a NATM-Tunnel with the Concrete Model.
I'm trying to include the time-dependency of the shotcrete to simulate the hardening of the concrete.


The following problem occured:
I have a round lenght om 1 m and I want to simulate 10 m advancement.
One calculation-phase has the time-Intervall of 0.5 days and the calculation-type is plastic.
When I calculate two advancement steps I'd expect the stiffness of the second lining to match the stiffness of 0.5 days and the stiffness of the first lining segment to match the stiffness of 1 day.
But in the calculation, the time for all lining segments is somehow "resetted", even if the checkbox for "reset time" is not activated.
That means that in every following calculation step the stiffness of every lining-segment in the stiffness of 0.5 days, no "hardening" is considered.

Is this issue fixed in newer program versions? (Creep is also not included in Version 1018.01)

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