Fracture and Structural Integrity e-ISSN 1971-8993 Open access
SI: From Microcracks to Structural Failure: Emerging Challenges in Fracture and Structural Integrity Vol. 20, No. 77 (2026)

Experimental and numerical investigations of lattice structures

Author and affiliation details
DOI
10.3221/IGF-ESIS.77.08
Pages
107-119
Published
Licence
CC BY 4.0
Published inVol. 20, No. 77 (2026)Go to the issue

Abstract

The present work investigates the compressive mechanical response of three lattice structures manufactured via VAT photopolymerization. A bio-inspired architecture, derived from the observation of Euplectella aspergillum, was compared with square and triangular lattice configurations. Experimental uniaxial compression tests and multi-step nonlinear finite element analyses were carried out for each topology to highlight differences in their mechanical behaviour.

The results demonstrate that the bio-inspired structure exhibits superior mechanical performance compared to conventional square and triangular geometries. Furthermore, the proposed simulation methodology proved effective for design purposes, enabling the consideration of instability phenomena and contributing to safer structural design. Finally, micromechanical modelling was employed to link the micro-architecture to the effective macroscopic properties. In particular, a micro-mechanical model allowed to predict the elastic moduli and yield strength, highlighting a stretch-dominated behaviour in elastic regime.

Keywords

Article history

  1. ReceivedUntil the next stage: 6 days
  2. RevisedUntil the next stage: 4 days
  3. AcceptedUntil the next stage: 2 days
  4. Published

Statements

Funding

CNCS - UEFISCDI

About the authors

Liviu Marsavina

Director of Mechanics and Strength of Materials Department
Faculty of Mechanical Engineering
POLITEHNICA University of Timisoara

How to cite

APA

Marsavina, L., Marghitas, M., Marsavina, C., D’Andrea, D., Santonocito, D., & Risitano, G. (2026). Experimental and numerical investigations of lattice structures. Fracture and Structural Integrity, 20(77), 107–119. https://doi.org/10.3221/IGF-ESIS.77.08

IEEE

L. Marsavina, M. Marghitas, C. Marsavina, D. D’Andrea, D. Santonocito, and G. Risitano, “Experimental and numerical investigations of lattice structures,” Fracture and Structural Integrity, vol. 20, no. 77, pp. 107–119, 2026, doi: 10.3221/IGF-ESIS.77.08.

MLA

Marsavina, Liviu, et al. “Experimental and numerical investigations of lattice structures.” Fracture and Structural Integrity, vol. 20, no. 77, 2026, pp. 107–119. https://doi.org/10.3221/IGF-ESIS.77.08.

Chicago

Marsavina, Liviu, Mihai Marghitas, Cosmin Marsavina, Davide D’Andrea, Dario Santonocito, and Giacomo Risitano. 2026. “Experimental and numerical investigations of lattice structures.” Fracture and Structural Integrity 20 (77): 107–119. https://doi.org/10.3221/IGF-ESIS.77.08.

Harvard

Marsavina, L., Marghitas, M., Marsavina, C., D’Andrea, D., Santonocito, D. and Risitano, G. (2026) ‘Experimental and numerical investigations of lattice structures’, Fracture and Structural Integrity, 20(77), pp. 107–119. doi: 10.3221/IGF-ESIS.77.08.

Vancouver

Marsavina L, Marghitas M, Marsavina C, D’Andrea D, Santonocito D, Risitano G. Experimental and numerical investigations of lattice structures. Fracture and Structural Integrity. 2026;20(77):107-119. doi:10.3221/IGF-ESIS.77.08

BibTeX

@article{marsavina2026, author = {Marsavina, Liviu and Marghitas, Mihai and Marsavina, Cosmin and D’Andrea, Davide and Santonocito, Dario and Risitano, Giacomo}, title = {Experimental and numerical investigations of lattice structures}, journal = {Fracture and Structural Integrity}, year = {2026}, volume = {20}, number = {77}, pages = {107--119}, doi = {10.3221/IGF-ESIS.77.08}, url = {https://doi.org/10.3221/IGF-ESIS.77.08}, issn = {1971-8993} }

RIS

TY - JOUR AU - Marsavina, Liviu AU - Marghitas, Mihai AU - Marsavina, Cosmin AU - D’Andrea, Davide AU - Santonocito, Dario AU - Risitano, Giacomo TI - Experimental and numerical investigations of lattice structures JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2026 DA - 2026/04/17 VL - 20 IS - 77 SP - 107 EP - 119 DO - 10.3221/IGF-ESIS.77.08 UR - https://doi.org/10.3221/IGF-ESIS.77.08 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2026 Liviu Marsavina, Mihai Marghitas, Cosmin Marsavina, Davide D’Andrea, Dario Santonocito, Giacomo Risitano.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

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