ArticlePolymers2025
Density-Based Topology-Optimized 3D-Printed Fixtures for Cyclic Mechanical Testing of Lattice Structures.
Article in Polymers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- From Structural Kinematics to Thermomechanical Degradation in Polymer and Hybrid Negative Thermal Expansion Metamaterials.Polymers · 2026Review
- Resin-Reinforced Auxetic Structures with Re-Entrant Struts for Improved Energy Absorption.Polymers · 2025Article
- Metamortar Composites Reinforced with Re-Entrant Auxetic Cells: Mechanical Performance and Enhanced Energy Absorption.Polymers · 2025Article
- Compressive Behavior of 316L Stainless Steel Lattice Structures for Additive Manufacturing: Experimental Characterization and Numerical Modeling.Biomimetics (Basel, Switzerland) · 2025Article
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Authors and funding
7 authors.
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Abstract
The reliable experimental characterization of architected lattice materials under cyclic loading requires accurate fixture systems that ensure proper load transfer without introducing parasitic effects. This study presents the design and validation of testing fixtures optimized using density-based topological optimization techniques for performing cyclic load tests on lattice structures. The supports were manufactured with PLA filaments and evaluated using finite element simulation and experimental testing. The results show that the final design achieved a safety factor of 4.25, significantly improving on the initial value of 2.08. Likewise, the optimized supports showed reduced deformations by around 80% compared to the machine clamps, ensuring rigid and reliable stress transfer. In particular, while the metal structure of the test system showed deformations of several millimeters, the optimized PLA supports recorded displacements around 0.73 mm, confirming that they remain virtually rigid and ensure correct transmission of forces to the Kelvin-type structure. These findings confirm the viability of using PLA as an alternative to conventional metal devices in fixtures for mechanical testing of lattice materials.
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