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Multi-Scale Modeling of Advanced Materials: Numerical Methods and Experimental Research

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

Deadline for manuscript submissions: closed (20 May 2024) | Viewed by 1927

Special Issue Editors


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Guest Editor
College of Science and Engineering, University of Derby, Derby DE22, UK
Interests: computational mechanics; composite materials; aerospace structures; multifield interactions; smart sensors; optimisation algorithms; 3D printing; homogenisation techniques
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
College of Science and Engineering, University of Derby, Derby DE22, UK
Interests: advanced materials; computational modelling; aerospace defense; damage; fracture mechanics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the last decades, relevant progress has been in the area of advanced materials like composites, lightweight and high-strength alloys, shape-memory alloys, high-entropy alloys, and many more besides. The effective usage of these materials is strictly related to the understanding and the development of advanced constitutive models to adequately describe the mechanical behaviour of this class of materials. Areas of application include the aerospace, automotive and transportation industries, electronics, medical device, and sport industries. To set a thematic focus beyond the areas of application, we are specifically looking for contributions on:

  • Novel and multiscale numerical methods for the prediction, analysis, and design of the mechanical properties, including computational damage and fracture mechanics.
  • Theoretical and fundamental insights into the microstructure–property relationships for this advanced class of materials.
  • Understanding the manufacturing processes, deformation mechanisms, and mechanical/failure responses of advanced materials.
  • Theoretical and experimental investigations of the connection between the manufacturing processes and the physical mechanisms of the interactions between plasticity, damage, and fracturing, among other defects.
  • Advanced numerical and experimental methods for studying the microstructure, process, full-field measurements across different length scales, and various microscopic visualization methods.

Moreover, the focal topics listed above are not meant to exclude articles from additional areas. Similarly, we do not intend to limit the Special Issue’s focus on consolidated manufacturing processes or classical numerical methods, although it can be extended to emerging areas such as the additive manufacturing and intelligent manufacturing of advanced and designed materials or to computational thermodynamics in material modelling.

Dr. Stefano Valvano
Prof. Dr. Angelo Maligno
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

  • multiscale modelling
  • multifield problems
  • nano- and microstructure characterization
  • homogenized properties
  • numerical methods
  • damage and fracture
  • experimental testing

Published Papers (2 papers)

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Research

20 pages, 11541 KiB  
Article
The Beneficial Effect of a TPMS-Based Fillet Shape on the Mechanical Strength of Metal Cubic Lattice Structures
by Christian Iandiorio, Gianmarco Mattei, Emanuele Marotta, Girolamo Costanza, Maria Elisa Tata and Pietro Salvini
Materials 2024, 17(7), 1553; https://doi.org/10.3390/ma17071553 - 28 Mar 2024
Viewed by 628
Abstract
The goal of this paper is to improve the mechanical strength-to-weight ratios of metal cubic lattice structures using unit cells with fillet shapes inspired by triply periodic minimal surfaces (TPMS). The lattice structures here presented were fabricated from AA6082 aluminum alloy using lost-PLA [...] Read more.
The goal of this paper is to improve the mechanical strength-to-weight ratios of metal cubic lattice structures using unit cells with fillet shapes inspired by triply periodic minimal surfaces (TPMS). The lattice structures here presented were fabricated from AA6082 aluminum alloy using lost-PLA processing. Static and dynamic flat and wedge compression tests were conducted on samples with varying fillet shapes and fill factors. Finite element method simulations followed the static tests to compare numerical predictions with experimental outcomes, revealing a good agreement. The TPSM-type fillet shape induces a triaxial stress state that significantly improves the mechanical strength-to-weight ratio compared to fillet radius-free lattices, which was also confirmed by analytical considerations. Dynamic tests exhibited high resistance to flat impacts, while wedge impacts, involving a high concentrated-load, brought out an increased sensitivity to strain rates with a short plastic deformation followed by abrupt fragmentation, indicating a shift towards brittle behavior. Full article
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55 pages, 26035 KiB  
Article
On the Importance of the Recovery Procedure in the Semi-Analytical Solution for the Static Analysis of Curved Laminated Panels: Comparison with 3D Finite Elements
by Francesco Tornabene, Matteo Viscoti and Rossana Dimitri
Materials 2024, 17(3), 588; https://doi.org/10.3390/ma17030588 - 25 Jan 2024
Cited by 4 | Viewed by 1010
Abstract
The manuscript presents an efficient semi-analytical solution with three-dimensional capabilities for the evaluation of the static response of laminated curved structures subjected to general external loads. A two-dimensional model is presented based on the Equivalent Single Layer (ESL) approach, where the displacement field [...] Read more.
The manuscript presents an efficient semi-analytical solution with three-dimensional capabilities for the evaluation of the static response of laminated curved structures subjected to general external loads. A two-dimensional model is presented based on the Equivalent Single Layer (ESL) approach, where the displacement field components are described with a generalized formulation based on a higher-order expansion along the thickness direction. The fundamental equations are derived from the Hamiltonian principle, and the solution is found by means of Navier’s approach. Then, an efficient recovery procedure, derived from the three-dimensional elasticity equations and based on the Generalized Differential Quadrature (GDQ) method, is adopted for the derivation of the three-dimensional solution. Some examples of investigation are presented, where the numerical predictions of refined three-dimensional Finite-Element-based models are matched with a high level of accuracy. The model is validated for both straight and curved panels, taking into account different lamination schemes and load shapes. Furthermore, it is shown that the numerical solution to the elasticity problem in the recovery procedure is determining and accurately predicting the three-dimensional static response of the doubly-curved shell solid. Full article
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