Mapping of Elastic and Hyperelastic Properties of the Periodontal Ligament

Муслов, С. А.; Panin, S. V.; Zolotnitsky, I.V.; Пивоваров, А. А.; Anischenko, Aleksander; Arutyunov, S. D.

doi:10.1007/s11029-023-10109-7

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…This makes them suitable for diverse applications [74]. Often referred to as hyper-elastic materials due to their rubberlike mechanical properties [75], silicones can also be engineered to be flame-retardant by incorporating fillers [76]. For instance, silicone sprays can be used to fill firewalls [77].…”

Section: Discussionmentioning

confidence: 99%

Slate–Cork Laminate Enhanced with Silicone for Habitat Industry Application

Abenojar,

López de Armentia,

Martínez

2024

Fire

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This study investigates the feasibility of using a composite material comprising slate reinforced with cork sheets for architectural purposes like facades and wall coverings. The research involves the comprehensive characterisation of both slate and cork materials along with the evaluation of the silicone adhesive used in their bonding process, specifically Sikasil® HT from SIKA®. It was found that both slate and cork exhibited low wettability, which was enhanced through cold plasma treatment. Subsequently, a composite sandwich structure was fabricated and subjected to impact testing in a drop tower, along with fire resistance evaluations. The fire tests revealed that when subjected to a flame of 900 °C for 15 min, the slate alone heated rapidly, reaching 500 °C within 3 min on the side opposite to the flame. However, the sandwich structure reached 260 °C on the cork side (opposite to the flame) at 7.5 min, maintaining this temperature until the deterioration or detachment of the cork between 11 and 12 min. This provided insulation and delayed ignition. The sandwich structure maintained its fire resistance due to the insulating properties of cork and the superior thermal resistance of silicone compared to other adhesives up to 260 °C. Overall, the results suggest the potential suitability of this sandwich structure for architectural applications. Its favourable adhesion properties and acceptable fire resistance indicate that it could serve as a viable alternative for construction materials in architectural contexts.

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Section: Discussionmentioning

confidence: 99%

Slate–Cork Laminate Enhanced with Silicone for Habitat Industry Application

Abenojar,

López de Armentia,

Martínez

2024

Fire

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Biomechanical properties of nasal tissues

Gvetadze,

Yarigin,

Muslov

et al. 2024

Mol Med Rus

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Introduction. Plastic rhinosurgery and augmentation rhinoplasty are very relevant today. Especially in relation to patients with congenital saddle deformity of the nasal dorsum, as well as patients with iatrogenic disorders of the nose shape, which dramatically reduce the quality of human life. There are violations of the function of the nose. The purpose of the work. Purpose. Within the framework of the necessity of performing silicone implantation rhinoplasty, the strength, elastic and hyperelastic properties of the soft tissues of the nasal fascia and periosteum were studied, the dynamic viscosity of the tissues of the nasal fascia and periosteum was evaluated, determining their relaxation properties using elastic, hyperelastic and rheological models. Methods. Linear, bilinear (with two Young modules), exponential, hyperelastic (neohookean, Mooney-Rivlin, Ogden, Yeoh, polynomial and Veronda-Westmann) and elastic-viscous (Maxwell) models of biological tissues were used. We used the Mathcad 15.0 computer algebra system and the universal package of interdisciplinary programs ANSYS Multiphysics Software (version 2022 R2). The accuracy of replacing the properties of real tissues with the results of calculations was calculated on the basis of indicators of descriptive statistics (standard deviation, maximum absolute error, maximum relative error and correlation coefficient). Results. It is proved that the bilinear model for the exact reproduction of the stress-strain curve assumes at the molecular level of tissues an initial linear reaction of elastin fibers, passing at ε=εcr into the final linear reaction of the collagen matrix. It was found that the properties of the periosteum (correlation coefficient R=0.9999) and nasal fascia (correlation coefficient R=0.9999) are described most adequately by the 5-parametric polynomial model of the 2nd order and the Yeoh model of the 3rd order (R=0.999 and R=1, respectively), the least accurately by the simple 1-parameter neohookean model (R=0.898 for the periosteum and R=0.905 for the fascia). Among elastic models, the exponential dependence characterizes the behavior of nasal materials quite well. Conclusion. Biomechanically verified that the periosteum is thicker, stronger and more rigid than the fascia. The established very high viscosity values indicate the slowness of relaxation processes in tissues. The periosteum relaxes tension more slowly, which improves the result of implant fixation. On the contrary, the relaxation time of the periosteum is higher than that of the fascia, from which it is concluded that it is preferable not to cut the periosteum during subcostal implantation.

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Mapping of Elastic and Hyperelastic Properties of the Periodontal Ligament

Cited by 2 publications

References 21 publications

Slate–Cork Laminate Enhanced with Silicone for Habitat Industry Application

Slate–Cork Laminate Enhanced with Silicone for Habitat Industry Application

Biomechanical properties of nasal tissues

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