Anderson localisation and reentrant delocalisation of tensorial elastic waves in two-dimensional fractured media
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Date
2022-02-23Type
- Journal Article
Abstract
We study tensorial elastic wave transport in two-dimensional densely fractured media using numerical simulations and document transitions from propagation to diffusion and to localisation/delocalisation. For large fracture stiffness, waves are propagative at the scale of the system. For small stiffness, multiple scattering prevails, such that waves are diffusive in disconnected fracture networks, and localised in connected ones with a strong multifractality of the intensity field. A reentrant delocalisation is found in well-connected fracture networks due to energy leakage via evanescent waves and cascades of mode conversion. Show more
Publication status
publishedExternal links
Journal / series
EPLVolume
Pages / Article No.
Publisher
EDP SciencesOrganisational unit
03465 - Löw, Simon (emeritus) / Löw, Simon (emeritus)03738 - Sornette, Didier (emeritus) / Sornette, Didier (emeritus)
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