Abstract

The existence of load-induced cracks in polycrystalline S2 ice is investigated theoretically in terms of the pile-ups of grain boundary dislocations around grain triple points. The microstructural stresses due to the elastic anisotropy of ice crystals are taken into account. Considering a random microstructure, the numerical results show that: (i) both stable and unstable cracks can be nucleated during loading, (ii) the smallest crack nucleation stresses for both tension and compression are functions of the grain size and the lateral confinement, (iii) the sizes of the stable cracks obey a gamma-type distribution with a small mean and a large skewness.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.