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The aim is to evaluate the mechanical properties of Voronoi-core sandwich structures made from Tough PLA through additive manufacturing.

May 4, 2026Open Access

Mechanical Evaluation of Voronoi-Core Sandwich Structures by Additive Manufacturing

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The aim is to evaluate the mechanical properties of Voronoi-core sandwich structures made from Tough PLA through additive manufacturing.
Fabricated Voronoi-core structures with varying pore density using FDM technology.
Analyzed mechanical behavior under compression, flexural, and impact tests.
Compared five core configurations (V0.2 to V1.0) to assess performance differences.
V0.2 had the highest compression modulus of 62.94 MPa and stress levels of 2.05 MPa (σ10) and 5.71 MPa (σ50).
Flexural strength decreased with density, showing 14.7 MPa in V0.2 compared to 5.4 MPa in V1.0.
Impact tests revealed V0.2 resisted crack initiation up to 9 inches, significantly outperforming V1.0 which failed at 6 inches.

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Randomized trial investigates mechanical properties of Voronoi-core sandwich structures, suggesting practical applications for lightweight designs.

Akın et al. (2025) studied this question.

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Randomized trial investigates mechanical properties of Voronoi-core sandwich structures, suggesting practical applications for lightweight designs.