Morphogenesis and propagation of complex cracks induced by thermal shocks

Abstract : We study the genesis and the selective propagation of complex crack networks induced by thermal shock or drying of brittle materials. We use a quasi-static gradient damage model to perform large scale numerical simulations showing that the propagation of fully developed cracks follows Griffith criterion and depends only on the fracture toughness, while crack morphogenesis is driven by the material's internal length. Our numerical simulations feature networks of parallel cracks and selective arrest in two dimensions and hexagonal columnar joints in three dimensions, without any hypotheses on cracks geometry and are in good agreement with available experimental results.
Document type :
Journal articles
Complete list of metadatas

Cited literature [19 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00911118
Contributor : Jean-Jacques Marigo <>
Submitted on : Thursday, November 28, 2013 - 5:35:13 PM
Last modification on : Friday, August 2, 2019 - 11:46:02 AM
Long-term archiving on : Monday, March 3, 2014 - 6:46:10 PM

File

13_PRL_BouMarMauSic_accepted.p...
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00911118, version 1

Citation

Blaise Bourdin, Jean-Jacques Marigo, Corrado Maurini, Paul Sicsic. Morphogenesis and propagation of complex cracks induced by thermal shocks. Physical Review Letters, American Physical Society, 2013. ⟨hal-00911118⟩

Share

Metrics

Record views

427

Files downloads

381