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- W4306176196 abstract "This paper presents an analytical method to predict the delayed switching dynamics of nonlinear shallow arches while switching from one state to another state for different loading cases. We study an elastic arch subject to static loading and time-dependent loading separately. In particular, we consider a time-dependent loading that evolves linearly with time at a constant rate. In both cases, we observed that the switching does not occur abruptly when the load exceeds the static switching load, rather the time scale of the dynamics drastically slows down; hence there is a delay in switching. For time-independent loading, this delay increases as the applied load approach the static switching load. Whereas for a time-dependent loading, the delay is proportional to the rate of the applied load. Other than the loading parameters, the delay switching time also depends on the local curvature of the force-displacement function at the static switching point and the damping coefficient of the arch material. The delay switching occurs due to the flatness of the energy curve at static switching load. Therefore, we linearize the arch near the static switching point and get a reduced nonlinear ordinary differential equation to study the switching dynamics of the arch. This reduced equation allows us to derive analytical expressions for the delay switching time of the. We further compare the derived analytical results with the numerical solutions and observed a good agreement between them. Finally, the derived analytical formulae can be used to design arches for self-offloading dynamic footwear for diabetics." @default.
- W4306176196 created "2022-10-14" @default.
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- W4306176196 date "2022-10-11" @default.
- W4306176196 modified "2023-09-28" @default.
- W4306176196 title "Switching Dynamics of Shallow Arches" @default.
- W4306176196 doi "https://doi.org/10.48550/arxiv.2210.05734" @default.
- W4306176196 hasPublicationYear "2022" @default.
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