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Modern Numerical and Experimental Methods for Mechanics of Material
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Modern Numerical and Experimental Methods for Mechanics of Material

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Mechanics of Materials".

Deadline for manuscript submissions: closed (10 December 2022) | Viewed by 7289

Special Issue Editor

Prof. Dr. Jozef Bocko

E-Mail Website
Guest Editor
Department of Applied Mechanics and Mechanical Engineering, Faculty of Mechanical Engineering, Technical University of Košice, Letná 9, 042 00 Kosice, Slovakia
Interests: finite element method; nonlinear shells; metamaterials; elasto-visco-plasticity; applications of Lie groups and tensors in mechanics; nonlinear continuum; nanostructures; structural optimization

Special Issue Information

Dear Colleagues,

As you are expert in the field of mechanics, we bring to your attention the opportunity to publish an article in a Special Issue of the journal Materials, which will be devoted to the field of modern numerical and experimental methods in the mechanics of materials. The Special Issue will be oriented towards the numerical methods of mechanics; in particular, finite element method, shell theory, plasticity, continuum mechanics, metamaterials, and nanostructures. The scope of interest will include rheological models, thermo-mechanical constitutive response of materials, new mechanics concepts or new material mechanisms, mechanics of contact, adhesion and friction as well as application of computational and experimental methods in practice. From the experimental mechanics, we prefer to publish papers dealing with classical strain-gage measurements, contactless optical methods, measurement of residual stresses and so on.

We would be delighted if you would kindly send us an article for this Special Issue, or if you would inform your colleagues working in this field about this Special Issue.

Prof. Dr. Jozef Bocko
Guest Editor

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. Materials is an international peer-reviewed open access semimonthly 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 2600 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.

Keywords

finite element method

shell theory

plasticity

structural optimization

rheology

experimental methods

metamaterials;

nanostructures

contactless methods

strain-gage

residual stresses

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

13 pages, 6583 KiB  
Article
Optimization of Apex Shape for Mounting to the Bead Bundle Using FEM
by Peter Palička, Róbert Huňady, Martin Hagara and Pavol Lengvarský
Materials 2023, 16(1), 377; https://doi.org/10.3390/ma16010377 - 30 Dec 2022
Cited by 2 | Viewed by 2537
Abstract
Tires are one of the most basic and important components of vehicles, including bicycles, cars, trucks, and aircraft. They consist of several layers that provide complex and dynamically changing functions. This work aims to optimize the mounting process of the tire apex to [...] Read more.
Tires are one of the most basic and important components of vehicles, including bicycles, cars, trucks, and aircraft. They consist of several layers that provide complex and dynamically changing functions. This work aims to optimize the mounting process of the tire apex to the bead. The bead locks the tire to the rim and helps minimize the risk of rim slip, and the apex provides dynamic stiffness, stress distribution, and driving stability. In mounting the apex onto the bead, air can be trapped between the apex and bead, which is an undesirable and significant problem in tire manufacturing. An FE model was created to simulate and optimize this process. After modifying the apex dimensions, the air was displaced from the space between the apex and the bead. Based on the simulation results, a set of recommendations for producing suitable apex shapes is provided. Full article
(This article belongs to the Special Issue Modern Numerical and Experimental Methods for Mechanics of Material)
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20 pages, 3387 KiB  
Article
Comparison of Structural Analysis of Thin-Walled Structures Accomplished by Isogeometric Analysis and the Finite Element Method
by Jozef Bocko, Patrik Pleško, Ingrid Delyová and Peter Sivák
Materials 2022, 15(19), 6516; https://doi.org/10.3390/ma15196516 - 20 Sep 2022
Cited by 3 | Viewed by 2243
Abstract
Isogeometric analysis (IGA) represents a relatively new method of problem-solving in engineering practice. A huge advantage of this method over the finite element method (FEM), is the reduction of the simulation execution time. Non-uniform rational B-splines (NURBS) allow the use of higher-order basis [...] Read more.
Isogeometric analysis (IGA) represents a relatively new method of problem-solving in engineering practice. A huge advantage of this method over the finite element method (FEM), is the reduction of the simulation execution time. Non-uniform rational B-splines (NURBS) allow the use of higher-order basis functions, thus increasing the accuracy of the solution. This paper deals with the comparison of structural analysis of thin-walled structural elements using isogeometric analysis and the finite element method. The investigated objects are modelled using a single patch in MATLAB. The basic functions are created from NURBS, which were previously used in the creation of an accurate geometric model. The paper contains a comparison of the results obtained by the above-mentioned methods. All computations are performed in the elastic domain. Full article
(This article belongs to the Special Issue Modern Numerical and Experimental Methods for Mechanics of Material)
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17 pages, 3653 KiB  
Article
A Numerical Measurement Method for Dynamic Granular Materials Based on Computer Vision
by Hao Liu, Yuxing Nie, Man Chen, Shunkai Liu and Ashiru Mohammed
Materials 2022, 15(10), 3554; https://doi.org/10.3390/ma15103554 - 16 May 2022
Cited by 2 | Viewed by 1929
Abstract
Granular materials are widespread in nature and human production, and their macro-mechanical behavior is significantly affected by granule movement. The development of computer vision has brought some new ideas for measuring the numerical information (including the amount of translation, the rotation angle, velocity, [...] Read more.
Granular materials are widespread in nature and human production, and their macro-mechanical behavior is significantly affected by granule movement. The development of computer vision has brought some new ideas for measuring the numerical information (including the amount of translation, the rotation angle, velocity, acceleration, etc.) of dynamic granular materials. In this paper, we propose a numerical measurement method for dynamic granular materials based on computer vision. Firstly, an improved video instance segmentation (VIS) network is introduced to perform end-to-end multi-task learning, and its temporal feature fusion module and tracking head with long-sequence external memory can improve the problems of poor video data quality and high similarity in appearance of granular materials, respectively. Secondly, the numerical information can be extracted through a series of post-processing steps. Finally, the effectiveness of the measurement method is verified by comparing the numerical measurement results with the real values. The experimental results indicate that our improved VIS obtains an average precision (AP) of 76.6, the relative errors and standard deviations are maintained at a low level, and this method can effectively be used to measure the numerical information of dynamic granular materials. This study provides an intelligent proposal for the task of measuring numerical information of dynamic granular materials, which is of great significance for studying the spatial distribution, motion mode and macro-mechanical behavior of granular materials. Full article
(This article belongs to the Special Issue Modern Numerical and Experimental Methods for Mechanics of Material)
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