Can supershear transition be seen in damage and aftershock pattern? Part one: Theory [Slides]

Technical Report · Wed Oct 16 00:00:00 EDT 2019

DOI:https://doi.org/10.2172/1571567· OSTI ID:1571567

Bruhat, Lucile ^[1]; Jara, Jorge ^[1]; Antoine, Solene ^[2]; Okubo, Kurama ^[3]; Thomas, Marion Y. ^[4]; Rougier, Esteban  ^[5]; Rosakis, Ares J. ^[6]; Sammis, Charles ^[7]; Klinger, Yann ^[2]; Jolivet, Romain ^[1]; Bhat, Harsha S. ^[1]

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1. École Normale Supérieure, Paris (France)
2. Institut de physique du globe de Paris (France)
3. Harvard University, Cambridge, MA (United States)
4. Sorbonne University, Paris (France)
5. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
6. California Institute of Technology (CalTech), Pasadena, CA (United States)
7. University of Southern California, Los Angeles, CA (United States)

What we’ve learned from fracture mechanics and numerical modeling - Stress intensity at the crack tip evolves with the rupture velocity • As the rupture velocity approaches the Rayleigh wave speed, before transitioning to supershear, the stress intensity reduces • As a result, the region affected by the stress intensity decreases in size as well, leading to a sudden shrinkage of the near-fault damage zone.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: 89233218CNA000001
• OSTI ID: 1571567
• Report Number(s): LA-UR-19-30468
• Country of Publication: United States
• Language: English

Related Subjects

Earth Sciences