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Abstract
This paper investigates the three-dimensional propagation of fractures, revealing that the process involves localized rupture nucleation followed by rapid transverse expansion at velocities approaching the Rayleigh-wave speed. Experiments using a fluid-driven penny-shaped crack in a cylindrical geometry demonstrate a correlation between the amplitude of the initial distortion and the transverse velocity. Dynamic rupture simulations support these findings, particularly at high transverse velocities. The study highlights the crucial role of transverse dynamics in extended fracture propagation.
Publisher
Nature Physics
Published On
Apr 01, 2024
Authors
T. Cochard, I. Svetlizky, G. Albertini, R. C. Viesca, S. M. Rubinstein, F. Spaepen, C. Yuan, M. Denolle, Y.-Q. Song, L. Xiao, D. A. Weitz
Tags
fracture propagation
localized rupture
transverse expansion
dynamic rupture simulations
Rayleigh-wave speed
cylindrical geometry
fluid-driven cracks

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