PSI - Issue 59

Olena Mikulich et al. / Procedia Structural Integrity 59 (2024) 466–470 Olena Mikulich et al. / Structural Integrity Procedia 00 (2024) 000 – 000

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Using simulation numerical modeling based on the approaches developed by Mikulich (2023) allows us to analyze the influence of physical, mechanical, and microstructural characteristics on the attenuation rate of wave processes in foam materials. 4. Conclusions 1. The approach to the study of the vibration-absorbing properties of foams considered in the paper allows not only to carry out a detailed analysis of the stress distribution in the layers of the material but also to analyze the influence of the microstructure of the material on the vibration-absorbing capacity. 2. The analysis of numerical results shows that the use of the developed approach allows optimization of the exploitation characteristics of the corresponding structural elements. 3. The accuracy of numerical calculations is ensured by the strict use of well-known semi-analytical approaches of mechanics, which in turn makes it possible to carry out numerical calculations under practically any external load. Acknowledgment The work performs within t he state grants of applied research № 0122U001064 "Methodology of predicting mechanical behaviour and optimizing the effective characteristics of foam and porous materials". The team of authors expresses their sincere gratitude to the Ministry of Education and Science of Ukraine. References Anderson, W. B., Lakes, R. S., 1994. Size effects due to Cosserat elasticity and surface damage in closed-cell polymethacrylimide foam. Journal of Materials Science 29(24), 6413 – 6419. Bayat, A., Gaitanaros, S. 2019. Elastic Wave Propagation in Open-Cell Foams. J. Appl. Mech. 86(5), 051008. Chen, Sh., Lei, Sh., Zhu Ju., Zhang, T., 2021. The Influence of Microstructure on Sound Absorption of Polyurethane Foams through Numerical Simulation. Macromolecular Theory and Simulation 30(5), 2000075. Mikulich, O., 2023. Method of Assessing the Optimality of the Mechanical Characteristics of Foams. Grabchenko’s International Conference on Advanced Manufacturing Processes. InterPartner 2023: Advanced Manufacturing Processes V, 477 – 484. Mikulich, O., Shvabyuk, V., 2021. Investigation of impulse load attenuation in closed-cell foam in the framework of couple stress elasticity. IOP Conf. Ser.: Mater. Sci. Eng. 1164, 012052. Placido, M., Gatto, A., Montrasio, L., Zavatto, L. 2021. Experimental Analysis and Theoretical Modelling of Polyurethane Effects on 1D Wave Propagation through Sand-Polyurethane Specimens. Journal of Earthquake Engineering 9, 1961933. Pradel, F., Malaise, T., de Rességuier, et al. , 2018. Stress wave propagation and mitigation in two polymeric foams. AIP Conference Proceedings 1979, 110015. Schiffer, A., Leeb, D., Kimb, E., Kimc, T., 2018. Interaction of highly nonlinear solitary waves with rigid polyurethane foams. International Journal of Solids and Structures 152‒152, 39‒50. Wangab, Ya., Lianga, Ch., 2019. Wave propagation characteristics in nanoporous metal foam nanobeams. Results in Physics 12, 287‒297.