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September 10, 2025Applied SciencesOpen Access

Evaluation of Bending Stress and Shape Recovery Behavior Under Cyclic Loading in PLA 4D-Printed Lattice Structures

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Authors

MDMaria Pia DesoleAGAnnamaria GisarioMBM. Barletta

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Overview

Observational analysis shows superior shape recovery in lozenge structures under cyclic loading, indicating new energy absorption insights.

Key Points

  • The lozenge structure outperforms the roller in energy absorption, demonstrating a 25% increase in capacity.
  • Three-point bending tests reveal the roller provides better replicability and shape stability compared to lozenge structures.
  • Shape recovery behavior was assessed through three consecutive hot water immersion cycles, guiding future material applications.
  • PLA lattice structures with a 50% relative density reveal significant bending stress tolerance and recovery characteristics.

Cite This Study

Desole et al. (2025) studied this question.

synapsesocial.com/papers/68c1c9dd54b1d3bfb60f2f40https://doi.org/10.3390/app15158540
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