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Advances in Aerospace Materials and Technologies

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

Deadline for manuscript submissions: closed (20 August 2022) | Viewed by 3101

Special Issue Editor


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Guest Editor
Department of Aerospace Science and Technology, Politecnico di Milano, Via Giuseppe La Masa, 34, 20156 Milan, Italy
Interests: multifunctional materials; self-healing; composites; fracture mechanics; additive manufacturing; viscoelasticity; damping; shape memory

Special Issue Information

Dear Colleagues,

In recent years, materials and technologies have made great progress in increasing the reliability and efficiency of aerospace structures; however, further advances are becoming essential for greener aviation and safer space missions.

Materials for aerospace applications raise several challenges related to low mass requirements and the demand for very high performance. In addition, future aerospace structures will require use of multifunctional and recyclable materials. Moreover, technologies will play a fundamental role, and additive manufacturing is probably the most promising manufacturing technique for efficient aerospace structures since it can manage materials which, otherwise, cannot be conveniently adopted by conventional technologies for producing light, thin-walled and complex structures.

The aim of this Special Issue is to report recent advances related to all areas of materials and technologies in the aerospace sector, which encompasses novel composites and nanocomposites, tailored materials for additive manufacturing, materials for energy storage, sustainable materials, shape memory alloys and polymers, self-healing materials, and other multifunctional materials. Full papers, communications, and reviews are all welcome. I am confident that publication of such a Special Issue will stimulate the imagination of researchers to develop advanced materials to further enhance the performances and capabilities of future aerospace structures.

Dr. Antonio Mattia Grande
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

  • high-performance materials
  • composites
  • nanocomposites
  • multifunctional materials
  • energy storage
  • additive manufacturing
  • shaper memory
  • self-healing
  • metamaterials
  • process–structure–property relationships

Published Papers (1 paper)

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Research

21 pages, 15527 KiB  
Article
Compression Behavior of EBM Printed Auxetic Chiral Structures
by Kadir Gunaydin, Halit Süleyman Türkmen, Alessandro Airoldi, Marco Grasso, Giuseppe Sala and Antonio Mattia Grande
Materials 2022, 15(4), 1520; https://doi.org/10.3390/ma15041520 - 17 Feb 2022
Cited by 8 | Viewed by 2097
Abstract
In this study, the cyclic compression and crush behavior of chiral auxetic lattice structures produced from titanium alloy (Ti6Al4V) metallic powder using electron beam melting (EBM) additive manufacturing technology is investigated numerically and experimentally. For material characterization and understanding the material behavior of [...] Read more.
In this study, the cyclic compression and crush behavior of chiral auxetic lattice structures produced from titanium alloy (Ti6Al4V) metallic powder using electron beam melting (EBM) additive manufacturing technology is investigated numerically and experimentally. For material characterization and understanding the material behavior of EBM printed parts, tensile and three-point flexural tests were conducted. Log signals produced during the EBM process were investigated to confirm the stability of process and the health of the produced parts. Furthermore, a compressive cyclic load profile was applied to the EBM printed chiral units having two different thicknesses to track their Poisson’s ratios and displacement limits under large displacements in the absence of degradation, permanent deformations and failures. Chiral units were also crushed to investigate the effect of failure and deformation mechanisms on the energy absorption characteristics. Moreover, a surface roughness study was conducted due to high surface roughness of EBM printed parts, and an equation is offered to define load-carrying effective areas to prevent misleading cross-section measurements. In compliance with the equation and tensile test results, a constitutive equation was formed and used after a selection and calibration process to verify the numerical model for optimum topology design and mechanical performance forecasting using a non-linear computational model with failure analysis. As a result, the cyclic compression and crush numerical analyses of EBM printed Ti6Al4V chiral cells were validated with the experimental results. It was shown that the constitutive equation of EBM printed as-built parts was extracted accurately considering the build orientation and surface roughness profile. Besides, the cyclic compressive and crush behavior of chiral units were investigated. The regions of the chiral units prone to prematurely fail under crush loads were determined, and deformation modes were investigated to increase the energy absorption abilities. Full article
(This article belongs to the Special Issue Advances in Aerospace Materials and Technologies)
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