DOI: 10.18503/1995-2732-2025-23-1-170-177
Abstract
Problem Statement (Relevance). One of the strategies for achieving high mechanical performance in materials design is the development of self-locking structures. Self-locking structures are assemblies of interlocking building blocks that are held together solely by contact and friction at the block boundaries and thus do not require any connecting elements. This feature makes them energy-absorbing, crack-resistant, versatile and recyclable. Of particular practical interest is the development of multilayer self- locking structures. A prefabricated multilayer structure made of truncated cubes is proposed, intended for use as equipment parts and construction elements. Objectives. The purpose of this work is to study the mechanical behavior of a multilayer self-locking structure made of truncated cubes, its structural stability and energy absorption characteristics. Methods Applied. Using the developed 3D finite element model, the mechanical characteristics of a self-locking structure made of H18N9T steel were studied. Originality. The study proposes a new self-locking structure made of truncated cubes. Result. A parametric study of the influence of the friction coefficient on the assembly response under quasi-static loading of a three-layer self-locking structure of truncated cubes was carried out. Diagrams of quasi-static loading of the assembly were designed for various values of the friction coefficient. The structure of the assembly and the distribution of Mises stresses at various stages of deformation were studied. The dependences of the peak load and absorbed energy on the friction coefficient were obtained. Practical Relevance. The results of the study make it possible to design energy-absorbing materials for various building structures, including bank protection structures, as well as increasing the vibration resistance of load-bearing columns.
Keywords
self-locking structures, topologically interlocked materials, deformation, modeling, finite element method, rigidity, steel
For citation
Pivovarova K.G., Pesina S.A., Belov A.Ya., Pivovarov F.V., Mogilnykh A.E. Simulation of Quasi-Static Loading of a Multilayer Self- Interlocking Structure Based on Truncated Cubes. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 1, pp. 170-177. https://doi.org/10.18503/1995-2732-2025-23-1-170-177
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