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cond-mat.soft2025
Universality in the velocity jump in the crack propagation observed for food-wrapping films for daily use
Aoi Nohara, Ko Okumura
The velocity jump found in the crack propagation for rubbers has been a powerful tool for developing tough rubber materials. Although it is suggested by a theory that the jump coul…
cond-mat.soft2024
Universality in the mechanics of soft Kirigami
Yukino Kako, Ko Okumura
Recently, simple scaling laws concerning the mechanical response and mechanical transition of Kirigami have been revealed through agreement between theory and experiment for kiriga…
cond-mat.soft2002
Water spring: a model for bouncing drops
K. Okumura, F. Chevy, C. Clanet +2
It has been shown that a water drop can bounce persistently, when thrown on a super-hydrophobic substrate. We present here scaling arguments which allow us to predict the maximal d…