Discontinuous dynamic transition in crack propagation of stretchable elastomers

Physical review. E, Год журнала: 2024, Номер 110(6)

Опубликована: Дек. 13, 2024

Highly stretchable elastomers show a well-known discontinuous fracture transition, involving crack propagation speed becoming double-valued within certain window of network stretching. This transition can occur either in continuous stretching or after sizable step stretch. Crack increases sharply with rising temperature, suggesting that dissociation backbone bonds strands is the origin fracture. Consequently, nature appears to be related how evolves redistribute strand tension, getting more participate fast growth on upper branch transition. Beyond bound window, sufficiently high leads only because load-bearing cannot survive due higher bond tension longer timescales. Conversely, below minimal degree stretching, also disappears, and proceeds slow growth, where very few are ready undergo chain scission necessary for

Язык: Английский

Fresh considerations regarding time-dependent elastomeric fracture

Extreme Mechanics Letters, Год журнала: 2024, Номер unknown, С. 102277 - 102277

Опубликована: Дек. 1, 2024

Язык: Английский