arXiv Machine Learning By Weiyun Xu, Jiamu Liu

Growth-Inspired Graph Generation and Inverse Design of Mechanical Lattices via Dot Matrices Database Augmentation and GCNN

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This paper presents a morphogenetic graph‑generation framework that builds mechanical lattices by sequentially adding nodes from a discrete dot matrix, mirroring natural growth processes. The resulting 3D lattices are evaluated with finite‑element analysis and encoded as graphs, which a graph convolutional neural network (GCNN) uses to learn a topology‑property map and predict compressive stiffness. By coupling the GCNN surrogate with rapid sampling, the authors perform inverse design to achieve target stiffness values and extend the method to curved, nonlinear beams for shape‑programming applications.

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