Abstract
Despite past investigations of the buckling instability, the kinetics of the buckling process is not well understood. We develop a generic framework for determining the buckling kinetics of membranes under compressive stress via molecular dynamics simulations. The buckling time is modeled by an extended Boltzmann-Arrhenius-Zhurkov equation accounting for temperature and scale-dependent bending rigidity. We discern three regimes: (I) decreases with ; (II) increases with ; (III) is independent. Regime II coheres with the predictions of the theory of fluctuating sheets (TFS). Regime I is seen at small scales due to fluctuations about equilibrium and is not predicted by the TFS.
- Received 8 June 2023
- Accepted 21 November 2023
DOI:https://doi.org/10.1103/PhysRevE.109.L023001
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