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Structural Analysis and Material Characterization in Aviation and Aerospace

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

Deadline for manuscript submissions: closed (10 September 2022) | Viewed by 5480

Special Issue Editors

CIRA—Italian Aerospace Research Centre, 81043 Capua, CE, Italy
Interests: ceramic matrix composites; sub-modeling; finite elements; hypersonic vehicles

Special Issue Information

Dear Colleagues,

Scientists specialized in modelling techniques continuously interact with experimentalists to achieve a deeper comprehension and insights into materials and structures. Especially within the high technology fields of aviation and aerospace, these insights allow to design materials and structures towards truly specific properties or applications.

This Special Issue of Materials aims to gather the latest research and advances on the structural analysis and materials characterization for the industrial fields of aviation and aerospace. The main topics covered in this Special Issue deal with numerical simulations, experimental mechanics, and the characterization and analysis of materials and structures for, but not exclusively, fixed- and rotating-wing aircrafts, space launchers, rocket engines, drones, etc.

This Special Issue covers both traditional and innovative materials and their processes, such as lightweight materials, composites, materials for additive manufacturing, metamaterials, functionally graded materials, polymers, and others.

We welcome the submission of papers on numerical simulations, possibly comprising experimental investigations to validate numerical analyses. The application of damage, fatigue, delamination, fracture mechanics concepts; processes of welding, riveting, and bonding; considerations of the orthotropic and anisotropic behavior of materials are of particular interest.

Dr. Venanzio Giannella
Dr. Michele Ferraiuolo
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

  • aviation
  • aerospace
  • structures
  • materials
  • characterization
  • experimental tests
  • damage
  • simulation

Published Papers (3 papers)

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Research

21 pages, 13016 KiB  
Article
Durability and Corrosion Resistance Test of Adhesive Joints Using Two Adherence Promoters for the Connection of Aerospace Aluminum Alloys
by Monika Chomiak, Michał Sałaciński, Filip Gołębiowski and Piotr Broda
Materials 2022, 15(24), 8733; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15248733 - 07 Dec 2022
Cited by 1 | Viewed by 1408
Abstract
This article presents the technology of making an adhesive joint using two primers: Corrosion Inhibiting Primer BR127 (previously used, containing chromium compounds) and, as a potential substitute, Structural Adhesives Primer EW 5000 AS (which does not contain any compounds harmful to the environment). [...] Read more.
This article presents the technology of making an adhesive joint using two primers: Corrosion Inhibiting Primer BR127 (previously used, containing chromium compounds) and, as a potential substitute, Structural Adhesives Primer EW 5000 AS (which does not contain any compounds harmful to the environment). An adhesive film and a sol–gel primer were used to make the joint of two aluminum sheets, and various technologies were used for applying adhesion promoters. The mechanical properties of the prepared samples were tested using two test methods: wedge tests and shear strength tests. In both cases, the samples were aged in laboratory conditions in tap water, and in a climatic chamber (with increased temperature and humidity). The obtained results indicate that the best technology for preparing the joint using each primer is the technology that assumes heating the primer and hardening the adhesive film in one operation. The results of the strength tests indicate that the samples made using the EW 5000 AS primer have higher strength properties under all tested seasoning conditions compared to samples made using the BR 127 primer. It was also confirmed that the presence of moisture and/or water reduces the mechanical strength of the adhesive joints independently of the primer used. The results of the polymer coatings tests to protect the aluminum substrate against corrosion showed that the coatings are only effective for a certain period of time, and, as a result of the NSS test, after 480 h, all the samples were subject to corrosion. Full article
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14 pages, 6182 KiB  
Article
Effect of Metal-Cored Filler Wire on Surface Morphology and Micro-Hardness of Regulated Metal Deposition Welded ASTM A387-Gr.11-Cl.2 Steel Plates
by Din Bandhu, Faramarz Djavanroodi, G. Shaikshavali, Jay J. Vora, Kumar Abhishek, Ashish Thakur, Soni Kumari, Kuldeep K. Saxena, Mahmoud Ebrahimi and Shokouh Attarilar
Materials 2022, 15(19), 6661; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15196661 - 26 Sep 2022
Cited by 14 | Viewed by 1807
Abstract
Environmental and human-friendly welding is the need of the hour. In this context, this study explores the application of the regulated metal deposition (RMD) technique for ASTM A387-Gr.11-Cl.2 steel plates. To examine the effect of metal-cored filler wire (MCFW), MEGAFIL 237 M was [...] Read more.
Environmental and human-friendly welding is the need of the hour. In this context, this study explores the application of the regulated metal deposition (RMD) technique for ASTM A387-Gr.11-Cl.2 steel plates. To examine the effect of metal-cored filler wire (MCFW), MEGAFIL 237 M was employed during regulated metal deposition (RMD) welding of 6 mm thick ASTM A387-Gr.11-Cl.2 steel plates. The welding was carried out at an optimized current (A) of 100 A, voltage (V) of 13 V, and gas flow rate (GFR) of 21 L/min. Thereafter, the as-welded plates were examined for morphological changes using optical microscopy. Additionally, the micro-hardness of the as-welded plates was measured to make corroboration with the obtained surface morphologies. In addition to this, the as-welded plates were subjected to heat treatment followed by surface morphology and micro-hardness examination. A comparison was made between the as-welded and heat-treated plates for their obtained surface morphologies and microhardness values. During this, it was observed that the weld zone of as-welded plates has a dendritic surface morphology which is very common in fusion-based welding. Similarly, the weld zone of heat-treated plates has a finer and erratic arrangement of martensite. Moreover, the obtained surface morphologies in the weld zone of as-welded and heat-treated plates have been justified by their respective hardness values of 1588.6 HV and 227.3 HV. Full article
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18 pages, 6390 KiB  
Article
Thermostructural Numerical Analysis of the Thrust Chamber of a Liquid Propellant Rocket Engine
by Roberto Citarella, Michele Ferraiuolo, Michele Perrella and Venanzio Giannella
Materials 2022, 15(15), 5427; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15155427 - 07 Aug 2022
Cited by 6 | Viewed by 1795
Abstract
The numerical simulation of rocket engine thrust chambers is very challenging as several damaging phenomena, such as plasticity, low-cycle-fatigue (LCF) and creep occur during its service life. The possibility of simulating the thermostructural behavior of the engine, by means of non-linear finite element [...] Read more.
The numerical simulation of rocket engine thrust chambers is very challenging as several damaging phenomena, such as plasticity, low-cycle-fatigue (LCF) and creep occur during its service life. The possibility of simulating the thermostructural behavior of the engine, by means of non-linear finite element analyses, allows the engineers to guarantee the structural safety of the structure. This document reports the numerical simulations developed with the aim of predicting the thermostructural behaviour and the service life of the thrust chamber of a liquid-propellant rocket engine. The work represents a step ahead of previous researches by the authors, with particular reference to the addition of the Smith-Watson-Topper (SWT) fatigue criterion, and to the implementation of a sub-modelling technique, for a more accurate assessment of the most critical section of the component. It was found that the equivalent plastic strains in the most critical nodes obtained through the sub-modelling technique were about 20% lower than those calculated without sub-modelling. Consistently with experimental tests from literature conducted on similar geometries, the most critical areas resulted to be on the internal surface of the chamber. The analyses demonstrated that the LCF damaging contribution was significant, with a life prediction for the thrust chamber of about 3400 cycles. Full article
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