Modeling of re-entrant structures on an airfoil
DOI:
https://doi.org/10.29105/ingenierias29.101-998Keywords:
Ti–Zr alloy, superelastic properties, re-entrant geometries, simulation, airfoilAbstract
The superelastic properties of a Ti-Zr shape memory alloy were investigated using a re-entrant auxetic core structure embedded within an airfoil, through nonlinear finite element analysis. First, a constitutive model was developed to capture the superelastic mechanical response of the alloy. Subsequently, a numerical model of re-entrant auxetic structures was implemented, employing beam elements for improved computational efficiency. Simple and complex chiral configurations provided enhanced structural flexibility and load-bearing capability, exhibiting large displacements under limited stress levels. The numerical results showed good agreement with experimental data, demonstrating the potential of superelastic auxetic cores as an effective solution for smooth morphing airfoil applications.
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Copyright (c) 2026 Dr. Ricardo Parga Montemayor, Dr. Luis Alberto López Pavón, Dr. Luis Arturo Reyes Osorio, M.C. Diego Reducindo Almanza, Dr. Luis Alberto López Pavón

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