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Bending transition in the penetration of a flexible intruder in a two-dimensional dense granular medium

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Academic year: 2021

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FIG. 1. Experimental set-up (right panel): the granular layer is contained in an horizontal rectangular plate of width W and length H that moves at a constant speed along the direction indicated by the blue arrow (Y -axis)
FIG. 2. (a) Fluctuations of an elastic beam of length L = 2 cm in a granular medium of packing fraction φ = 80.94%
FIG. 5. Phase diagram in the plane L − φ. Experiments vs prediction. The symbols represent the experiments performed by varying the fiber length L or granular packing fraction φ with green diamonds for the bending regime and red circles for the jiggling re
FIG. 6. Irreversible deflection of the bending fiber of length L = 3 cm in a granular medium of packing fraction φ = 80.94% for different penetration distances `
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