Elastoplastic Modelling of an In Situ Concrete Spalling Experiment Using the Ottosen Failure Criterion

Figure 14

First principal stress [MPa] at −3 m level resulting from (a) 0 weeks in situ stress, (b) 9 weeks of heating, and (c) 16 weeks of heating using the ONK-EH3 stress interpretation. The left scale is for the concrete and the right scale is for the surrounding rock mass.

(a)

(b)

(c)