Superlative mechanical energy absorbing efficiency discovered through self-driving lab-human partnership
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Citation
K.L. Snapp, B. Verdier, A.E. Gongora, S. Silverman, A.D. Adesiji, E.F. Morgan, T.J. Lawton, E. Whiting, K.A. Brown. 2024. "Superlative mechanical energy absorbing efficiency discovered through self-driving lab-human partnership." Nature Communications, Volume 15, Issue 1, pp.4290-. https://doi.org/10.1038/s41467-024-48534-4
Abstract
Energy absorbing efficiency is a key determinant of a structure's ability to provide mechanical protection and is defined by the amount of energy that can be absorbed prior to stresses increasing to a level that damages the system to be protected. Here, we explore the energy absorbing efficiency of additively manufactured polymer structures by using a self-driving lab (SDL) to perform >25,000 physical experiments on generalized cylindrical shells. We use a human-SDL collaborative approach where experiments are selected from over trillions of candidates in an 11-dimensional parameter space using Bayesian optimization and then automatically performed while the human team monitors progress to periodically modify aspects of the system. The result of this human-SDL campaign is the discovery of a structure with a 75.2% energy absorbing efficiency and a library of experimental data that reveals transferable principles for designing tough structures.
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License
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