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Fluid-mediated process zone coalescence drives repulsive cracks into mutual attraction
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DOI：10.1016/j.jmps.2026.106676.png)
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Abstract
En 中文
• We present an experimental investigation into the interaction of two symmetrical fluid-driven cracks using hydrogel as a rock analogue. • Crack interaction transits from repulsion to attraction upon the coalescence of the fluid-infiltrating zones around the advancing tips. • Our results highlight the important role of fluid pressurization and the tight coupling between the fluid phase and the deforming matrix.
Keywords:
fluid-driven cracks
crack interaction
hydrogel
fluid pressurization
process zone coalescence
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