Nucleation of thermal cracks at the wall of a rock mass

•A review of crack nucleation criteria.•An analysis of thermal crack nucleation.•An application to crack nucleation at the wall of a rock mass. The conditions of cracks nucleation due to thermal shock at the wall of a rock mass are examined and a nucleation length as well as a time delay of crack oc...

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Bibliographic Details
Published in:Mechanics research communications 2019-04, Vol.97, p.57-62
Main Authors: Jeannin, Laurent, Dormieux, Luc, Carlioz, Thomas
Format: Article
Language:English
Subjects:
Nucleation
Thermal crack
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Summary:•A review of crack nucleation criteria.•An analysis of thermal crack nucleation.•An application to crack nucleation at the wall of a rock mass. The conditions of cracks nucleation due to thermal shock at the wall of a rock mass are examined and a nucleation length as well as a time delay of crack occurrence with respect to the thermal shock initial time is estimated. The results are applied to geophysical heat shock problems, such as temperature drop at a cavern wall or a sudden drop of temperature in a well.
ISSN:0093-6413
1873-3972
DOI:10.1016/j.mechrescom.2019.04.010