Numerical modelling of the deformation behaviour of polymer lattice structures with density gradient based on additive technologies
DOI:
https://doi.org/10.21638/spbu01.2022.410Abstract
The mechanical behavior of gradient lattice structures whose geometry is based on the analytic definition of three-dimensional triply periodic minimal surfaces (TPMS) is investigated. Several homogeneous and gradient lattice models with different types of representative volume geometry and gradient parameters are considered. The numerical models are validated with data obtained experimentally using the Vic-3D video system. The results of numerical simulation of the deformation behaviour of gradient structures with the Shoen G (gyroid) TPMP geometry under uniaxial compression are presented. The influence of structure parameters and gradient properties on the mechanical behaviour is studied.Keywords:
triply periodic minimal surfaces, two-phase structures, finite element method, functional gradient, microstructure
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Articles of "Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy" are open access distributed under the terms of the License Agreement with Saint Petersburg State University, which permits to the authors unrestricted distribution and self-archiving free of charge.