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Aerospace
Special Issues
Structural Design of Aerospace Vehicles
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Structural Design of Aerospace Vehicles

A special issue of Aerospace (ISSN 2226-4310). This special issue belongs to the section "Aeronautics".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 2634

Special Issue Editor

Prof. Dr. Hassan Haddadpour

E-Mail Website
Guest Editor
Department of Aerospace Engineering, Sharif University of Technology, Azadi Ave., Tehran 11365-8639, Iran
Interests: aeroelasticity; computational multi-body dynamics; reduced order modeling; structural design of aerospace vehicles; aeroservoelasticity; structural dynamics; optimization; topology optimization; smart material

Special Issue Information

Dear Colleagues,

The structural design of any flight vehicle is an iterative process involving a series of discrete phases such as conceptual, preliminary, detail, and construction design, each of which are repeated sequentially to develop a concept. As the geometry of a flight vehicle is already established, the applied loading conditions must be established based on interpretation of the established codes of requirements. Loading analysis is also an iterative process, and deformation of the structure may change the load. Once an initial set of loads has been derived, we need to determine the type of structure, material and type of construction, and the location of the main structural elements and the sizes needed as a response to the applied load. While the initial method is used to determine the details of the structure, it is necessary to undertake subsequent detailed stress analysis using advanced numerical methods. After that, performing failure and stability analysis is necessary to specify the safe life or fail safe of the structure under flight loading conditions. Following this, the structure must then be tested using structural test equipment and facilities.

The topics of interest for the present Special Issue include structural design philosophy, loading, aerospace materials, material selection process, structural analysis, stability analysis, failure analysis, aeroelasticity, optimization techniques, and structural testing and facilities.

Prof. Dr. Hassan Haddadpour
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. Aerospace is an international peer-reviewed open access monthly 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 2400 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

  • structures analysis
  • finite element method (FEM)
  • shell structures
  • smart materials and structures
  • aeroelasticity
  • structural dynamics
  • composite
  • topology optimization

Published Papers (2 papers)

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Research

19 pages, 7132 KiB  
Article
Correlation Studies of Different Decoupled Two-Scale Simulations for Lattice Structures
by Natsuki Tsushima, Ryo Higuchi and Koji Yamamoto
Aerospace 2023, 10(8), 723; https://doi.org/10.3390/aerospace10080723 - 18 Aug 2023
Cited by 1 | Viewed by 1346
Abstract
By deliberately designing microscopic internal mechanisms, architected materials can achieve a variety of material properties without changing constituent materials. Integration of the architected materials into a structure as substructures has a good potential to enhance structural performance and realize wide design freedom. This [...] Read more.
By deliberately designing microscopic internal mechanisms, architected materials can achieve a variety of material properties without changing constituent materials. Integration of the architected materials into a structure as substructures has a good potential to enhance structural performance and realize wide design freedom. This paper explores the capabilities of multiscale approaches for lattice structures, which is a major mechanism in architected materials. The objectives of this paper are (1) to demonstrate the capabilities of the framework to evaluate stiffness characteristics of lattice structures with two different two-scale analysis approaches and (2) to assess the accuracies and validity ranges of both approaches for appropriate evaluations of lattice structures. The two-scale analysis framework consists of the computational homogenizations for the generalized stiffness (ABD) and 3D stiffness (C) matrices. Equivalent stiffness characteristics of the unit cell are obtained by computational homogenizations to effectively capture the macroscopic responses of lattice structures. This study provides a comprehensive correlation study between the prediction accuracies of the two-scale analysis approaches in terms of tensile, bending, and torsional stiffness characteristics for practical modeling and development of lattice structures. The study will contribute a guideline for effective designs of high-performance structures with architected materials. Full article
(This article belongs to the Special Issue Structural Design of Aerospace Vehicles)
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23 pages, 12055 KiB  
Article
Study on Low-Velocity Impact Performance of Coal-Based Carbon Foam Sandwich Structures in Thermal Protection Systems
by Qikai Zhuang, Peijie Yue, Kai Li, Xin Guo and Xiaoquan Cheng
Aerospace 2023, 10(7), 630; https://doi.org/10.3390/aerospace10070630 - 12 Jul 2023
Viewed by 901
Abstract
Coal-based carbon foam (CCF) has been widely used in the hypersonic vehicles’ thermal protection system (TPS) due to its good thermal insulation and mechanical properties. In addition, CCF can absorb large quantities of energy when crushed so that the CCF sandwich structure can [...] Read more.
Coal-based carbon foam (CCF) has been widely used in the hypersonic vehicles’ thermal protection system (TPS) due to its good thermal insulation and mechanical properties. In addition, CCF can absorb large quantities of energy when crushed so that the CCF sandwich structure can effectively improve the impact resistance of the TPS. However, there are few studies on the impact performance of CCF sandwich structures, even the mechanical constitutive model (MCM) of CCF. This research work built the CCF MCM and studied the low-velocity impact properties. A large number of experiments were implemented to establish an effective and comprehensive CCF MCM which has three parts: basic mechanical properties, multiaxial loading failure criteria, and hardening rules. A series of tests on the low-velocity impact performance of two CCF sandwich structures were carried out, and finite element models (FEMs) were established according to the CCF MCM to simulate these tests. The experimental and simulation results were in good agreement. The impact damage mechanism was revealed by the tests and the FEMs. The MCM can be used not only for the simulation of low-velocity impact process but also for failure analysis of other CCF structures, which will help to design CCF structures at a low cost. Full article
(This article belongs to the Special Issue Structural Design of Aerospace Vehicles)
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