Submit to Special Issue Submit Abstract to Special Issue Review for Applied Sciences Edit a Special Issue

Journal Menu

Journal Browser

Special Issue "Improvement of Composite Components Performances according to Damage Tolerant Design Philosophies"

Special Issue Editors
Special Issue Information
Published Papers

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 20 September 2023 | Viewed by 2756

Share This Special Issue

Special Issue Editors

Dr. Angela Russo

E-Mail Website
Guest Editor

Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa (CE), Italy
Interests: composite materials; damage tolerance; delamination; buckling; fracture mechanics; fatigue; crack bridging

Prof. Dr. Aniello Riccio

E-Mail Website
Guest Editor

Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa (CE), Italy
Interests: composite materials; damage tolerance; delamination; fatigue; impact damage; crashworthiness; fuselages
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is well known that the excellent mechanical properties of composites make them one of the most widely used innovative materials in the manufacture of structural components in all fields of industrial engineering. Although much progress has been achieved, gaining an understanding of their damage behaviour still poses challenge. The difficulty in predicting the damage initiation and controlling its evolution in composite structures has led to over-conservative designs, resulting in consequences for the parameters of weight reduction and load-bearing performance. Hence, to make the composites affordable in structural application, damage-tolerant design approaches need to be promoted.

This Special Issue is devoted to the development of methods for the design of composite structures with damage tolerance constraints. Articles regarding analytical, numerical and experimental research aiming at improving the performance of composite components, optimising the weight and reducing the overall design costs and time are welcome.

Dr. Angela Russo
Prof. Dr. Aniello Riccio
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. Applied Sciences 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 2300 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.

Published Papers (4 papers)

Download All Papers

Order results

Result details

Show export options Show export options

Select all

Export citation of selected articles as:

Research

Open AccessArticle

Delamination Effect on the Buckling Behaviour of Carbon–Epoxy Composite Typical Aeronautical Panels

and

Appl. Sci. 2023, 13(7), 4358; https://doi.org/10.3390/app13074358 - 29 Mar 2023

Viewed by 395

Abstract

The instability of structures due to compression is one of the most critical issues related to aircraft components. Especially in composite materials, which have poor out-of-plane mechanical properties, the buckling load must be assessed to ensure that the structures are within the safe limits compared to the operating loads. In the presence of delamination, the compression instability of structures becomes catastrophic, as the propagation of delamination can dramatically reduce the stiffness of the structure almost instantaneously. During the operational life of composite aircraft components, one of the most common events that can occur is low-velocity impact with foreign objects, which is one of the primary reasons for delamination. In this paper, a sensitivity analysis is presented on a typical aerospace reinforced panel with a circular delamination, representative of an impact damage. Different configurations have been analysed, varying the radius and position along the thickness of the delamination. Furthermore, some geometric parameters of the panel have been modified to evaluate how the buckling load and the propagation of interlaminar damage evolve. Full article

(This article belongs to the Special Issue Improvement of Composite Components Performances according to Damage Tolerant Design Philosophies)

► Show Figures

Figure 1

Open AccessArticle

Mechanical and Conductive Behavior of Graphite Filled Polysulfone-Based Composites

Hussam Mohammad

Andrey A. Stepashkin

Alexander I. Laptev

and

Victor V. Tcherdyntsev

Appl. Sci. 2023, 13(1), 542; https://doi.org/10.3390/app13010542 - 30 Dec 2022

Viewed by 726

Abstract

Polysulfone-based composite materials filled with artificial, natural, or thermally expanded graphite have been investigated. Composite materials with filling degrees between 30 and 70 wt.% were prepared using solution technology. High filling levels with graphite fillers allowed for the achievement of thermal conductivity of 7.35 W/m · K and electrical conductivity of 52.9 S/cm. The use of natural graphite has been found to have the greatest impact on thermal and electrical characteristics, while materials with dispersed artificial graphite exhibit the best mechanical properties. Evolution of samples’ density and porosity with the filling degree as well as the effect of these parameters on the conductive properties have been analyzed and discussed. Full article

(This article belongs to the Special Issue Improvement of Composite Components Performances according to Damage Tolerant Design Philosophies)

► Show Figures

Figure 1

Open AccessArticle

Failure Propagation Controlling for Frangible Composite Canister Design

and

Appl. Sci. 2022, 12(23), 12220; https://doi.org/10.3390/app122312220 - 29 Nov 2022

Cited by 1 | Viewed by 527

Abstract

The complexity in predicting the damage initiation and failure propagation controlling in composite structures is challenging. The focus of this paper is to design a potential component for new ship gunnels to make the composite canister affordable in structural applications by using a damage tolerant design approach. The design of a new tailgate configuration was investigated, taking into account the correct fragmentation of the structure to ensure a clear ejection while reducing the weight of the panels by exploiting the properties of the composite material. The complex geometry of the tailgate, the high impulse load, the energy transferred to the tailgate during missile impact, and how to safely break large panel flaps are elements that characterize the sizing of the composite component to meet the stringent ejection requirements in the life cycle of a missile during takeoff. The numerical simulations were performed using the LS/Dyna code and its explicit formulation was contemplated to take into account the geometrical, contact, and material non linearities. Full article

(This article belongs to the Special Issue Improvement of Composite Components Performances according to Damage Tolerant Design Philosophies)

► Show Figures

Figure 1

Open AccessArticle

Natural Element Static and Free Vibration Analysis of Functionally Graded Porous Composite Plates

Jin-Rae Cho

Appl. Sci. 2022, 12(22), 11648; https://doi.org/10.3390/app122211648 - 16 Nov 2022

Viewed by 550

Abstract

The static bending and free vibration of functionally graded (FG) porous plates were analyzed by a 2D natural element method (NEM). Recent studies on FG materials considered the porosity because micropores and porosity were observed during the fabrication of FG materials owing to the difference in solidification temperatures. However, the mechanical responses of FG porous plates were not sufficiently revealed, and furthermore most numerical studies relied on the finite element method. Motivated by this situation, this study intended to investigate the combined effects of material composition and porosity distributions and plate thickness on the static bending and free vibration responses of ceramic–metal FG plates using 2D NEM incorporated with the (3,3,2) hierarchical model. The proposed numerical method is verified from the comparison with the reference such that the maximum relative difference is 5.336%. Five different porosity distributions are considered and the central deflection and the fundamental frequency of ceramic–metal FG porous plates are parametrically investigated with respect to the combination of the porosity parameter, the ceramic volume fraction index, and the width–thickness (w/t) ratio and to the boundary condition. The ranges of three parameters were set to 0–0.5 for the porosity, 0–0.6 for the ceramic volume fraction, and 3–20 for the width–thickness ratio. It was found from the numerical experiments that the static and free vibration responses of ceramic–metal FG porous plates are significantly affected by these parameters. Full article

(This article belongs to the Special Issue Improvement of Composite Components Performances according to Damage Tolerant Design Philosophies)

► Show Figures

Journal Menu

Journal Browser

Special Issue "Improvement of Composite Components Performances according to Damage Tolerant Design Philosophies"

Share This Special Issue

Special Issue Editors

Special Issue Information

Published Papers (4 papers)

Research

Further Information

Guidelines

MDPI Initiatives

Follow MDPI