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Symmetry
Special Issues
Mechanics of Heterogeneous Solids and Structures
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Mechanics of Heterogeneous Solids and Structures

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Mathematics".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 2768

Special Issue Editors

Dr. Ludmila Prikazchikova

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Guest Editor
School of Computing and Mathematics, Keele University, Keele ST5 5BG, UK
Interests: wave propagation; layered media; pre-stress; asymptotic methods
Prof. Dr. Igor Andrianov

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Guest Editor
Chair and Institute of General Mechanics, RWTH Aachen University, Eilfschornsteinstraße 18, D-52062 Aachen, Germany
Interests: asymptotology; nonlinear dynamics; composite materials; thin-walled structures
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue of Symmetry is dedicated to “Mechanics of Heterogeneous Solids and Structures”. The concept of “heterogeneous solids and structures” seems to be intuitively clear, involving, in particular, composite and discrete media, heterogeneous elastic and plastic structures, layered, reinforced, and perforated plates and shells, etc. Despite the wide variety of diverse problem formulations, they all have common features. As a rule, the domains of fast variation of sought-for solutions emerge along with the areas of smooth behavior. This naturally implies the implementation of powerful asymptotic methods, including homogenization, continualization, and multiple-scale techniques.

We equally expect contributions developing novel numerical approaches.

We look forward to receiving submissions reporting on advanced formulations concerned with the modeling of continuous and discrete heterogeneous solids and structures.

We also welcome experimental studies as part of this Special Issue. Although the number of experimental developments is relatively small today, they provide important validation for both analytical and numerical considerations. 

This Special Issue invites research and review papers on various fields of mechanics, theoretical physics, and applied mathematics, including mechanics of composite materials, solid mechanics, and the theory of plates and shells.

Dr. Ludmila Prikazchikova
Prof. Dr. Igor Andrianov
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

19 pages, 8082 KiB  
Article
Emulating Epileptic Seizures on Coupled Chua’s Circuit Networks
by Rafailia-Eleni Karamani, Karolos-Alexandros Tsakalos and Georgios Ch. Sirakoulis
Symmetry 2022, 14(11), 2325; https://doi.org/10.3390/sym14112325 - 05 Nov 2022
Cited by 3 | Viewed by 1267
Abstract
Irregular brain activity is of interest to researchers and scientists who are trying to understand, model, compare, and provide novel solutions to existing and challenging issues. Neurological disorders such as epilepsy, Alzheimer’s disease, Parkinson’s disease, and schizophrenia have been extensively studied. Among those [...] Read more.
Irregular brain activity is of interest to researchers and scientists who are trying to understand, model, compare, and provide novel solutions to existing and challenging issues. Neurological disorders such as epilepsy, Alzheimer’s disease, Parkinson’s disease, and schizophrenia have been extensively studied. Among those diseases, epileptic seizures are the most commonly occurring ones. In this work, as a simplification of the complete biological operations of the brain, it was viewed as a system that consists of coupled oscillators. This allowed us to examine epilepsy as a pathological manifestation of the system. Emerging behaviors that arise from the spatiotemporal interactions of simple oscillators, namely, Chua’s Circuit, allowed us to observe how irregularities and changes to the coupling parameters of a neuromorphic network affect their synchronization and result in the emergence of epileptic activity. To achieve this, the characteristics of novel nanoelectronic devices, namely, memristors, have been exploited through their integration into two-dimensional crossbar arrays that offer the advantages of reprogrammability, low area, and low power consumption. Full article
(This article belongs to the Special Issue Mechanics of Heterogeneous Solids and Structures)
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10 pages, 3597 KiB  
Article
Three-Dimensional Printing Component Used in Rehabilitation Exoskeleton
by Małgorzata John-Banach, Antoni John, Ioan Száva and Sorin Vlase
Symmetry 2022, 14(9), 1834; https://doi.org/10.3390/sym14091834 - 04 Sep 2022
Viewed by 892
Abstract
This work aims to develop a light symmetrical structure that can be realized through rapid prototyping techniques. The structure must meet some restrictions imposed by possible practical applications. It must withstand a moderate load, be able to adapt to a specific external shape, [...] Read more.
This work aims to develop a light symmetrical structure that can be realized through rapid prototyping techniques. The structure must meet some restrictions imposed by possible practical applications. It must withstand a moderate load, be able to adapt to a specific external shape, be relatively light, allow the execution of some changes according to user requirements, allow execution with the help of owned equipment, and allow relatively fast production (its structure and form). The major application for which the structure is designed is that of an exoskeleton for medical rehabilitation, realized by the authors. The creation of such an exoskeleton is followed by a series of research regarding different aspects of acceptability, reliability, ease of use, and the shortcomings that such a structure can cause. In this study, the authors focused on the mechanical part of the exoskeleton realization, which would fulfill some imposed kinematic and constructive conditions. Full article
(This article belongs to the Special Issue Mechanics of Heterogeneous Solids and Structures)
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