Work

In-plane mechanical properties of demi-regular lattice materials

Year: 2026

Type: article

Abstract: We investigated the potential of demi-regular tessellations to outperform existing prismatic lattice materials, such as the triangular topology.The in-plane mechanical properties of three demi-regular tessellations were derived analytically, and then corroborated by both finite element simulations and experiments.Our analysis showed that these three topologies are elastically isotropic and have a stretching-dominated behaviour.The elastic modulus of these three demi-regular topologies was 5-20% lower than that of a triangular lattice.Demiregular lattices, however, had a high elastic buckling strength, up to 42% higher than their triangular counterpart.This characteristic makes them ideal topologies for ultra-lightweight applications, where failure is usually governed by elastic buckling.

Source: European Journal of Mechanics - A/Solids

DOI: 10.1016/j.euromechsol.2026.106038

Authors: Anastasia Markou, Luc St-Pierre

Language: English

Topic: Cellular and Composite Structures

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,040

Funders: Aalto-Yliopisto, Suomen Kulttuurirahasto

Award: G1909680839