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

Figure 13

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 EDZ and VT1 stress interpretation. The left scale is for the concrete and the right scale is for the surrounding rock mass.

(a)

(b)

(c)