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- W4386570010 endingPage "102078" @default.
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- W4386570010 abstract "Periodic mechanical metamaterials, such as hexagonal honeycombs, have traditionally been designed with uniform cell walls to simplify manufacturing and modelling. However, recent research has suggested that varying strut thickness within the lattice could improve its mechanical properties. To fully explore this design space, we developed a computational framework that leverages Bayesian optimisation to identify configurations with increased uniaxial effective elastic stiffness and plastic or buckling strength. The best topologies found, representative of relative densities with distinct failure modes, were additively manufactured and tested, resulting in a 54% increase in stiffness without compromising the buckling strength for slender architectures, and a 63% increase in elastic modulus and a 88% increase in plastic strength for higher volume fractions. Our results demonstrate the potential of Bayesian optimisation and solid material redistribution to enhance the performance of mechanical metamaterials." @default.
- W4386570010 created "2023-09-10" @default.
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- W4386570010 date "2023-11-01" @default.
- W4386570010 modified "2023-09-27" @default.
- W4386570010 title "Bayesian optimisation of hexagonal honeycomb metamaterial" @default.
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- W4386570010 doi "https://doi.org/10.1016/j.eml.2023.102078" @default.
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