The development of reconfigurable run-flat tires offers a significant leap in tire technology, blending the benefits of traditional run-flat tires with dynamic adaptability. This paper explores the innovative design, prototyping, and testing of a reconfigurable run-flat tire (RRT) that maintains optimal performance under various conditions, including after punctures. By integrating advanced materials, intelligent sensors, and an adaptable structural design, the RRT aims to enhance vehicle safety, reduce maintenance costs, and improve overall driving experience. The paper covers the design principles, the prototyping process, and the results from preliminary testing. The findings suggest that reconfigurability in run-flat tires can substantially improve vehicle reliability while offering better user experience and performance.

Reconfigurable Tire, Run-Flat Tire, Tire Design

Cho, J.R.; Lee, J.H.; Jeong, K.M.; Kim, K.W. Optimum design of run-flat tire insert rubber by genetic algorithm. Finite Elem. Anal. Des. 2012, 52, 60–70. [Google Scholar] [CrossRef]

Haq, M.T.; Zlatkovic, M.; Ksaibati, K. Assessment of tire failure related crashes and injury severity on a mountainous freeway: Bayesian binary logit approach. Accid. Anal. Prev. 2020, 145, 105693. [Google Scholar] [CrossRef] [PubMed]

Markow, E.G. Run-Flat tire Incorporating Tape-Wrapped Helical Coil Band. Patent EP0205356A2, 17 April 1986. [Google Scholar]

Kopsco, M.A.; Markow, E.G. Segmented-Band Banded Tire. Patent EP0115129A2, 30 November 1983. [Google Scholar]

Zang, L.; Cai, Y.; Wang, B.; Yin, R.; Lin, F.; Hang, P. Optimization design of heat dissipation structure of inserts supporting run-flat tire. Proc. Inst. Mech. Eng. Part D J. Automob. Eng. 2019, 233, 3746–3757. [Google Scholar] [CrossRef]

Liu, H.; Pan, Y.; Bian, H.; Wang, C. Optimize design of run-flat tires by simulation and experimental research. Materials 2021, 14, 474. [Google Scholar] [CrossRef] [PubMed]

Motrycz, G.; Stryjek, P.; Jackowski, J.; Wieczorek, M.; Ejsmont, J.; Ronowski, G.; Sobieszczyk, S. Research on operational characteristics of tyres with run flat insert. J. KONES Powertrain Transp. 2012, 16, 319–326. [Google Scholar] [CrossRef]

Testa, G.; Bonora, N.; Esposito, L.; Iannitti, G. Design of an Electromechanical Testing Machine for Elastomers’ Fatigue Characterization. Eng. Proc. 2025, 85, 21. [Google Scholar] [CrossRef]

Available online: https://www.continental-pneumatici.it/b2c/car/continental-tire-technologies/runflat-tires/ (accessed on 1 July 2024).

Available online: https://tech-outdoors.com/misc/how-does-run-flat-tires-work.html (accessed on 1 June 2024).

Available online: http://www.opony-samochodowe.com/blog/tag/seal-inside (accessed on 1 July 2024).

Phromjan, J.; Suvanjumrat, C. A suitable constitutive model for solid tire analysis under quasi-static loads using finite element method. Eng. J. 2018, 22, 141–155. [Google Scholar] [CrossRef]

Jebur, Q.H.; Jweeg, M.J.; Al-Waily, M.; Ahmad, H.Y.; Resan, K.K. Hyperelastic models for the description and simulation of rubber subjected to large tensile loading. Arch. Mater. Sci. Eng. 2021, 108, 75–85. [Google Scholar] [CrossRef]

Ogden, R.W. Large deformation isotropic elasticity—On the correlation of theory and experiment for incompressible rubberlike solids. Proc. R. Soc. Lond. A Math. Phys. Sci. 1972, 326, 565–584. [Google Scholar] [CrossRef]

Benam, A.A. Comparative modelling results between a separable and a non-separable form of principal stretches–based strain energy functions for a variety of isotropic incompressible soft solids: Ogden model compared with a parent model. Mech. Soft Mater. 2023, 5, 2. [Google Scholar] [CrossRef]

Huang, L.; Yang, X.; Gao, J. Pseudo-elastic analysis with permanent set in carbon-filled rubber. Adv. Polym. Technol. 2019, 2019, 2369329. [Google Scholar] [CrossRef]

Fu, X.; Wang, Z.; Ma, L. Ability of constitutive models to characterize the temperature dependence of rubber hyperelasticity and to predict the stress-strain behavior of filled rubber under different defor mation states. Polymers 2021, 13, 369. [Google Scholar] [CrossRef] [PubMed]

Bertocco, A.; Iannitti, G.; Caraviello, A.; Esposito, L. Lattice structures in stainless steel 17-4PH manufactured via selective laser melting (SLM) process: Dimensional accuracy, satellites formation, compressive response and printing parameters optimization. Int. J. Adv. Manuf. Technol. 2022, 120, 4935–4949. [Google Scholar] [CrossRef]

Callanan, J.G.; Martinez, D.T.; Ricci, S.; Derby, B.K.; Hollis, K.J.; Fensin, S.J.; Jones, D.R. Spall strength of additively repaired 304L stainless steel. J. Appl. Phys. 2023, 134, 245102. [Google Scholar] [CrossRef]

Ricci, S.; Zucca, G.; Iannitti, G.; Ruggiero, A.; Sgambetterra, M.; Rizzi, G.; Bonora, N.; Testa, G. Characterization of Asymmetric and Anisotropic Plastic Flow of L-PBF AlSi10Mg. Exp. Mech. 2023, 63, 1409–1425. [Google Scholar] [CrossRef]

Kechagias, J.D.; Vidakis, N.; Petousis, M. Parameter effects and process modeling of FFF-TPU mechanical response. Mater. Manuf. Process. 2021, 38, 341–351. [Google Scholar] [CrossRef]

Ricci, S.; Pagano, A.; Ceccacci, A.; Iannitti, G.; Bonora, N. An Investigation of the Monotonic and Cyclic Behavior of Additively Manufactured TPU. Eng. Proc. 2025, 85, 18. [Google Scholar] [CrossRef]

Schieppati, J.; Schrittesser, B.; Pinter, G. Heat build-up of rubbers during cyclic loading. In Proceedings of the European Conference on Constitutive Models for Rubber—ECCMR, Nantes, France, 25–27 June 2019. [Google Scholar]

Krishnan, G.; Savic, V.; Cordeiro, B.; Biswas, S. Evaluation of Viscoelastic Material Models in LS-DYNA based on Stress Relaxation Data. In Proceedings of the International LS-DYNA Conference, Plymouth, MI, USA, 22–23 October 2024. [Google Scholar]