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- W2894496751 abstract "We present a topology optimization for lattice structures in the case of non-separated scales, i.e. when the characteristic dimensions of the periodic unit cells in the lattice are not much smaller than the dimensions of the whole structure. The present method uses a coarse mesh corresponding to a homogenized medium taking into strain gradient through a non-local numerical homogenization method. Then, the topological optimization procedure only uses the values at the nodes of the coarse mesh, reducing drastically the computational times. We show that taking into account the strain gradient within the topological optimization procedure brings significant increase in the resulting stiffness of the optimized lattice structure when scales are not separated, as compared to using a homogenized model based on the scale separation assumption." @default.
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- W2894496751 date "2018-11-01" @default.
- W2894496751 modified "2023-10-12" @default.
- W2894496751 title "Topology optimization of periodic lattice structures taking into account strain gradient" @default.
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- W2894496751 doi "https://doi.org/10.1016/j.compstruc.2018.09.003" @default.
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