2026-04-04T03:36:17Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1328542025-12-05T11:08:27Zcom_2072_1057col_2072_478780col_2072_478902col_2072_478917

00925njm 22002777a 4500 dc Lucantonio, Alessandro author Noselli, Giovanni author Trepat Guixer, Xavier author DeSimone, Antonio author Arroyo, Marino author 2019-05-08T11:18:24Z 2019-05-08T11:18:24Z 2015-10-28 2019-05-08T11:18:24Z Brittle materials propagate opening cracks under tension. When stress increases beyond a critical magnitude, then quasistatic crack propagation becomes unstable. In the presence of several precracks, a brittle material always propagates only the weakest crack, leading to catastrophic failure. Here, we show that all these features of brittle fracture are fundamentally modified when the material susceptible to cracking is bonded to a hydrogel, a common situation in biological tissues. In the presence of the hydrogel, the brittle material can fracture in compression and can hydraulically resist cracking in tension. Furthermore, the poroelastic coupling regularizes the crack dynamics and enhances material toughness by promoting multiple cracking. Polímers Fracturació hidràulica Polymers Hydraulic fracturing Hydraulic Fracture and Toughening of a Brittle Layer Bonded to a Hydrogel