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Computer Methods and Experimental Testing for Advanced Structural Materials

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

Deadline for manuscript submissions: 31 December 2024 | Viewed by 1511

Special Issue Editors


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Guest Editor
Institute of Applied Mechanics, Poznan University of Technology, Jana Pawła II 24, 60-965, Poznań, Poland
Interests: computational mechanics; corrugated cardboard; fluid mechanics; biomechanics; heat transfer; meshless methods; inverse problems
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Guest Editor
Faculty of Mechanical Engineering, University of Belgrade, 11000 Belgrade, Serbia
Interests: computational mechanics; material characterisation; constitutive modelling; finite element analysis; solid mechanics; structural analysis; non destructive testing; mechanics of materials; reduced order models; parameter identification; fracture mechanics

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Guest Editor
1. Department of Engineering and Applied Sciences, Università degli studi di Bergamo, Viale G. Marconi 5, 24044 Dalmine, BG, Italy
2. Department of Biosystems Engineering, Poznań University of Life Sciences, Wojska Polskiego 50, 60-627 Poznań, Poland
Interests: computational mechanics; non-linear structural analysis; inverse problems; mechanics of materials; mechanical characterisation

Special Issue Information

Dear Colleagues,

Recent trends in engineering research are seeing diverse computer methods being applied for structural simulations involving advanced materials that are usually subjected to nonlinear deformation. In these problems, the selection of the appropriate constitutive model for describing the material’s mechanical response is crucial, which has to be supported by a robust computational framework (e.g., finite element method, boundary element method or meshless methods) in order to yield reliable simulated results both at the material point and at the overall structural scale. These methods are being applied in vast engineering and scientific branches, modelling a large diversity of materials, ranging from bio-materials, eco-materials, composites, textiles, glass, timber, paperboard to more commonly used materials such as metals, ceramics or concrete.

The reliability of these simulations depends to a large extent on the accuracy of the parameters entered into the governing equations of the constitutive models selected. The calibration of these parameters is traditionally carried out based on data collected from the experiments; these data can be destructive, quasi-non-destructive or completely non-destructive. Inverse analyses provide significant help when transitioning from experimentally measured quantities to the targeted parameters. A similar methodology, with only marginal modifications, can be successfully applied in the diagnostic analysis of aged or possibly damaged structural materials. Computer methods employed in the outlined problems of parameter identification may take advantage of novel techniques such as reduced order models, evolutionary algorithms and artificial neural networks.

This Special Issue of Materials is devoted to the application of some of the abovementioned methods combined with experimental techniques in diverse applications, including (but not limited to) aeronautical, biomechanical, civil and mechanical engineering.

Dr. Jakub Krzysztof Grabski
Dr. Buljak Vladimir
Dr. Aram Cornaggia
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. 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

  • numerical methods
  • finite element method
  • meshless methods
  • boundary element method
  • reduced order models
  • artificial intelligence
  • artificial neural networks
  • evolutionary algorithms
  • inverse problems
  • structural optimization
  • parameter identification
  • material modelling
  • material characterisation
  • experimental material testing
  • non‑destructive testing
  • advanced materials
  • engineered materials
  • eco‑materials
  • metamaterials

Published Papers (2 papers)

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Research

13 pages, 4633 KiB  
Article
Elastic Wave Propagation Control in Porous and Finitely Deformed Locally Resonant Nacre-like Metamaterials
by Umberto De Maio, Fabrizio Greco, Paolo Nevone Blasi, Andrea Pranno and Girolamo Sgambitterra
Materials 2024, 17(3), 705; https://0-doi-org.brum.beds.ac.uk/10.3390/ma17030705 - 01 Feb 2024
Cited by 1 | Viewed by 519
Abstract
Recent studies have shown that the mechanical properties of bioinspired periodic composite materials can be strongly influenced by finite deformation effects, leading to highly nonlinear static and dynamic behaviors at multiple length scales. For instance, in porous periodic nacre-like microstructures, microscopic and macroscopic [...] Read more.
Recent studies have shown that the mechanical properties of bioinspired periodic composite materials can be strongly influenced by finite deformation effects, leading to highly nonlinear static and dynamic behaviors at multiple length scales. For instance, in porous periodic nacre-like microstructures, microscopic and macroscopic instabilities may occur for a given uniaxial loading process and, as a consequence, wave attenuation properties may evolve as a function of the microstructural evolution, designating it as metamaterials. The numerical outcomes provide new opportunities to design bioinspired, soft composite metamaterials characterized by high deformability and enhanced elastic wave attenuation capabilities given by the insertion of voids and lead cores. Full article
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13 pages, 8218 KiB  
Article
Study and Modelling of Fluid Flow in Ceramic Foam Filters
by Massoud Hassanabadi, Shahid Akhtar and Ragnhild E. Aune
Materials 2023, 16(17), 5954; https://0-doi-org.brum.beds.ac.uk/10.3390/ma16175954 - 30 Aug 2023
Viewed by 666
Abstract
To investigate the fluid flow characteristics of conventional Ceramic Foam Filters (CFFs) of grades 30 and 50, a 2D macro-scale geometry was generated by converting pixel grid images of the filters into vector format images. The flow behaviour through the filter channels was [...] Read more.
To investigate the fluid flow characteristics of conventional Ceramic Foam Filters (CFFs) of grades 30 and 50, a 2D macro-scale geometry was generated by converting pixel grid images of the filters into vector format images. The flow behaviour through the filter channels was then numerically modelled using the Stocks equation within the Creeping Flow interface of COMSOL Multiphysics®. Through modelling, the average interstitial velocity was estimated and found to be higher than the corresponding value obtained from the Dupuit–Forchheimer equation. The discrepancy obtained suggested that the flow behaviour within the filter channels differed from that based on the simplified assumptions of the equation. The porosity and permeability of the CFFs were evaluated during the post-processing stage using surface integration and user-defined equations. The experimentally determined porosity closely matched the values obtained from the simulation model, demonstrating the reliability of the numerical approach. However, the permeability values from the simulation of CFFs of grades 30 and 50 were higher than those obtained experimentally. This discrepancy can be attributed to the larger channels in the generated geometrical pattern compared to the original CFF structure. The present findings highlight the effectiveness of the proposed methodology in developing a representative macro-scale geometry for CFFs and in simulating fluid flow behaviour. Full article
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