S. Yu. Ivanova, K. Yu. Osipenko, N. V. Banichuk, D. S. Lisovenko
{"title":"On the Influence of Chirality of the Structure of Auxetic Metamaterials on the Resistance to Impact Penetration","authors":"S. Yu. Ivanova, K. Yu. Osipenko, N. V. Banichuk, D. S. Lisovenko","doi":"10.1134/S0025654425601156","DOIUrl":null,"url":null,"abstract":"<p>The properties of metamaterials with negative Poisson’s ratio (with an auxetic structure based on a cell in the form of a concave hexagon) to resist penetration by a rigid spherical striker along the normal have been experimentally studied. Using a 3D printer, samples of the same mass with a chiral and non-chiral structure are made from flexible thermoplastic polyurethane (TPU 95A plastic) and rigid e-PLA plastic, which are compared by the ability to reduce the kinetic energy of strikers at a speed of about 190 m/s. It is found that the chirality of the sample structure (for both TPU and PLA plastics) leads to an increase in their protective properties. However, when the sample structure is rotated by 90°, the samples without chirality show the best resistance to penetration. Based on the results of a series of experiments with TPU and PLA samples, the most effective in terms of resistance to penetration by a striker are auxetics made of thermoplastic polyurethane, with a non-chiral structure turned by 90°.</p>","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 3","pages":"1677 - 1684"},"PeriodicalIF":0.9000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mechanics of Solids","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0025654425601156","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
The properties of metamaterials with negative Poisson’s ratio (with an auxetic structure based on a cell in the form of a concave hexagon) to resist penetration by a rigid spherical striker along the normal have been experimentally studied. Using a 3D printer, samples of the same mass with a chiral and non-chiral structure are made from flexible thermoplastic polyurethane (TPU 95A plastic) and rigid e-PLA plastic, which are compared by the ability to reduce the kinetic energy of strikers at a speed of about 190 m/s. It is found that the chirality of the sample structure (for both TPU and PLA plastics) leads to an increase in their protective properties. However, when the sample structure is rotated by 90°, the samples without chirality show the best resistance to penetration. Based on the results of a series of experiments with TPU and PLA samples, the most effective in terms of resistance to penetration by a striker are auxetics made of thermoplastic polyurethane, with a non-chiral structure turned by 90°.
期刊介绍：
Mechanics of Solids publishes articles in the general areas of dynamics of particles and rigid bodies and the mechanics of deformable solids. The journal has a goal of being a comprehensive record of up-to-the-minute research results. The journal coverage is vibration of discrete and continuous systems; stability and optimization of mechanical systems; automatic control theory; dynamics of multiple body systems; elasticity, viscoelasticity and plasticity; mechanics of composite materials; theory of structures and structural stability; wave propagation and impact of solids; fracture mechanics; micromechanics of solids; mechanics of granular and geological materials; structure-fluid interaction; mechanical behavior of materials; gyroscopes and navigation systems; and nanomechanics. Most of the articles in the journal are theoretical and analytical. They present a blend of basic mechanics theory with analysis of contemporary technological problems.
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