Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.5
3.3
Journals
J. Compos. Sci.
Special Issues
Feature Papers in Journal of Composites Science in 2024
share announcement

Feature Papers in Journal of Composites Science in 2024

A special issue of Journal of Composites Science (ISSN 2504-477X).

Deadline for manuscript submissions: 31 December 2024 | Viewed by 5020

Special Issue Editor

Dr. Francesco Tornabene

grade E-Mail Website
Guest Editor
Department of Innovation Engineering, University of Salento, 73100 Lecce, Italy
Interests: theory of shells, plates, arches, and beams; generalized differential quadrature; FEM; SFEM; WFEM; IGA; SFIGA; WFIGA; advanced composite materials; functionally graded materials; nanomaterials and nanotechnology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As Editor-in-Chief of the Journal of Composites Science, I am pleased to announce this Special Issue, entitled “Feature Papers in Journal of Composites Science in 2024”. This Special Issue will be a collection of articles from Editorial Board Members, Guest Editors, and Leading Researchers discussing new knowledge or new cutting-edge developments in the science of composites in 2024. Potential topics include but are not limited to the following items:

  • Fiber-reinforced composites;
  • Novel composites;
  • Nanocomposites;
  • Biomedical composites;
  • Energy composites;
  • Modeling, nondestructive evaluation;
  • Processing and manufacturing, properties and performance;
  • Repair, testing, nanotechnology;
  • Physics, chemistry, and mechanics characterization of composites.

Dr. Francesco Tornabene
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. Journal of Composites Science 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 1800 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

  • fiber-reinforced composites
  • novel composites
  • nanocomposites
  • biomedical composites
  • energy composites
  • modeling, nondestructive evaluation
  • processing and manufacturing, properties and performance
  • repair, testing, nanotechnology
  • physics, chemistry, and mechanics characterization of composites

Published Papers (6 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

18 pages, 25030 KiB  
Article
Obtaining and Characterizing New Types of Materials Based on Low-Density Polyethylene and Thermoplastic Starch
by Maria Daniela Stelescu, Ovidiu-Cristian Oprea, Ludmila Motelica, Anton Ficai, Roxana-Doina Trusca, Maria Sonmez, Mihaela Nituica and Mihai Georgescu
J. Compos. Sci. 2024, 8(4), 134; https://doi.org/10.3390/jcs8040134 - 05 Apr 2024
Viewed by 556
Abstract
Significant interest is devoted to the development of new polymer blends by using concepts of the circular economy. Such materials have predetermined properties, are easy to recycle, ecological, and have a low carbon footprint. This research presents obtaining and characterization of polymer blends [...] Read more.
Significant interest is devoted to the development of new polymer blends by using concepts of the circular economy. Such materials have predetermined properties, are easy to recycle, ecological, and have a low carbon footprint. This research presents obtaining and characterization of polymer blends based on low-density polyethylene (LDPE) and thermoplastic starch (TPS). In the first stage, TPS was obtained through the gelatinization process, and, in the second stage, mixtures of LDPE and TPS were obtained through a melt mixing process at 150 °C for 7 min. The physical–mechanical characteristics of the samples, like hardness, elongation at break, rebound resilience, and tensile strength, were determined. The sample containing maleic anhydride grafted low-density polyethylene (LDPE-g-MA) as a compatibilizer shows improvements in elongation at break and tensile strength (by 6.59% and 40.47%, respectively) compared to the test sample. The FTIR microscopy maps show that samples containing LDPE-g-MA are more homogeneous. The SEM micrographs indicate that TPS-s is homogeneously dispersed as droplets in the LDPE matrix. From the thermal analysis, it was observed that both the degree of crystallinity and the mass loss at high temperature are influenced by the composition of the samples. The melt flow index has adequate values, indicating good processability of the samples by specific methods (such as extrusion or injection). Full article
(This article belongs to the Special Issue Feature Papers in Journal of Composites Science in 2024)
►▼ Show Figures

Figure 1

18 pages, 5664 KiB  
Article
A Numerical Method for Unstable Propagation of Damage in Fiber-Reinforced Plastics with an Implicit Static FE Solver
by Atsushi Kondo, Yutaro Watanabe, Kentaro Sakai, Yutaka Iwahori, Eiichi Hara and Hisaya Katoh
J. Compos. Sci. 2024, 8(4), 130; https://doi.org/10.3390/jcs8040130 - 02 Apr 2024
Viewed by 427
Abstract
Finite element analyses of the propagation of damage such as fiber compressive failure and delamination have greatly contributed to the understanding of failure mechanisms of fiber-reinforced plastics owing to extensive studies on methodologies using Continuum Damage Mechanics and Fracture Mechanics. Problems without the [...] Read more.
Finite element analyses of the propagation of damage such as fiber compressive failure and delamination have greatly contributed to the understanding of failure mechanisms of fiber-reinforced plastics owing to extensive studies on methodologies using Continuum Damage Mechanics and Fracture Mechanics. Problems without the need for consideration of inertia, such as Double-Cantilever Beam tests, are usually solved by implicit FE solvers, and explicit FE solvers are appropriate for phenomena that progress with very high velocity such as impact problems. However, quasi-static problems with unstable damage propagation observed in experiments such as Open-Hole Compression tests are still not easy to solve for both types of solvers. We propose a method to enable the static FE solver to solve problems with unstable propagation of damage. In the present method, an additional process of convergence checks on the averaged energy release rate of damaged elements is incorporated in a conventional Newton–Raphson scheme. The feasibility of the present method was validated by two numerical examples consisting of analyses of Open-Hole Compression tests and Double-Cantilever Beam tests. The results of the analyses of OHC tests showed that the present method was applicable to problems with unstable damage propagation. In addition, the results from the analyses of DCB tests with the present method indicated that mesh density and loading history are not significantly influential to the solution. Full article
(This article belongs to the Special Issue Feature Papers in Journal of Composites Science in 2024)
►▼ Show Figures

Figure 1

20 pages, 31558 KiB  
Article
The Use of the Computer Tomography Method in the Analysis of the Microstructure of Materials Formed as a Result of Hydrothermal Treatment: Cellular Concretes
by Anna Stepien and Ryszard Dachowski
J. Compos. Sci. 2024, 8(3), 98; https://doi.org/10.3390/jcs8030098 - 08 Mar 2024
Viewed by 693
Abstract
The subject of this research is sustainable construction and energy saving, which is most reflected in the technological aspects of building construction. This article focuses on single-family buildings, and the subject of this research is hollow blocks (blocks) created as a result of [...] Read more.
The subject of this research is sustainable construction and energy saving, which is most reflected in the technological aspects of building construction. This article focuses on single-family buildings, and the subject of this research is hollow blocks (blocks) created as a result of hydrothermal treatment, in this case, autoclaved aerated concrete (AAC) and autoclaved cellular concrete (ACC), both traditional and modified plastics (HIPS). There are two types of materials resulting from hydrothermal treatment: autoclaved sand-lime bricks and autoclaved concrete. Both in the case of ACC and silicates bricks, the basic substrates used during their production are lime, sand and water (cement is also added to cellular concrete). This article presents the methodology of testing the porous structure of autoclaved materials with the use of computed tomography. Aerated concrete (light autoclaved concrete) has a compressive strength of 2–6 MPa. The tests included aerated concrete modified with high-impact polystyrene, commonly known as HIPS. HIPS high-impact polystyrene is a thermoplastic polymer that is obtained by block suspension polymerization of styrene with the addition of synthetic rubber. As a result of polymerization, small particles of polybutadiene remain in the polystyrene male, changing its physical and mechanical properties. The results from the content of air voids in the autoclaved concrete sample were, on average, 52.53%. Full article
(This article belongs to the Special Issue Feature Papers in Journal of Composites Science in 2024)
►▼ Show Figures

Figure 1

21 pages, 6810 KiB  
Article
Machine Learning Approaches for Predicting the Ablation Performance of Ceramic Matrix Composites
by Jayanta Bhusan Deb, Jihua Gou, Haonan Song and Chiranjit Maiti
J. Compos. Sci. 2024, 8(3), 96; https://doi.org/10.3390/jcs8030096 - 05 Mar 2024
Viewed by 1069
Abstract
Materials used in aircraft engines, gas turbines, nuclear reactors, re-entry vehicles, and hypersonic structures are subject to severe environmental conditions that present significant challenges. With their remarkable properties, such as high melting temperatures, strong resistance to oxidation, corrosion, and ablation, minimal creep, and [...] Read more.
Materials used in aircraft engines, gas turbines, nuclear reactors, re-entry vehicles, and hypersonic structures are subject to severe environmental conditions that present significant challenges. With their remarkable properties, such as high melting temperatures, strong resistance to oxidation, corrosion, and ablation, minimal creep, and advantageous thermal cycling behavior, ceramic matrix composites (CMCs) show great promise as a material to meet the strict requirements in these kinds of environments. Furthermore, the addition of boron nitride nanoparticles with continuous fibers to the CMCs can offer thermal resistivity in harsh conditions, which will improve the composites’ strength and fracture toughness. Therefore, in extreme situations, it is crucial to understand the thermal resistivity period of composite materials. To forecast the ablation performance of composites, we developed six machine learning regression methods in this study: decision tree, random forest, support vector machine, gradient boosting, extreme gradient boosting, and adaptive boosting. When evaluating model performance using metrics including R2 score, root mean square error, mean absolute error, and mean absolute percentage error, the gradient boosting and extreme gradient boosting machine learning regression models performed better than the others. The effectiveness of machine learning models as a useful tool for forecasting the ablation behavior of ceramic matrix composites was effectively explained by this study. Full article
(This article belongs to the Special Issue Feature Papers in Journal of Composites Science in 2024)
►▼ Show Figures

Figure 1

14 pages, 6424 KiB  
Article
Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends
by Gabriela Loi, Pasquale Buonadonna, Rayane El Mohtadi, Mauro Carta, Daniele Lai, Mohamad El Mehtedi and Francesco Aymerich
J. Compos. Sci. 2024, 8(3), 84; https://doi.org/10.3390/jcs8030084 - 24 Feb 2024
Viewed by 795
Abstract
The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin [...] Read more.
The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. Full article
(This article belongs to the Special Issue Feature Papers in Journal of Composites Science in 2024)
►▼ Show Figures

Figure 1

14 pages, 4854 KiB  
Article
Miniature Ultrasound Transducer Incorporating Sm-PMN-PT 1-3 Composite
by Jia-Ming Zhang, Guo-Cui Bao, Wen Gao, Ri-Qiang Lin, Fan Yang and Kwok-Ho Lam
J. Compos. Sci. 2024, 8(3), 80; https://doi.org/10.3390/jcs8030080 - 22 Feb 2024
Viewed by 1118
Abstract
Piezoelectric 1-3 composite materials have become extensively utilized in diagnostic ultrasound transducers owing to their high electromechanical coupling coefficient, low acoustic impedance, and low dielectric loss. In this study, Sm-doped PMN-PT ceramic/epoxy 1-3 composite with a ceramic volume fraction of 60% is fabricated [...] Read more.
Piezoelectric 1-3 composite materials have become extensively utilized in diagnostic ultrasound transducers owing to their high electromechanical coupling coefficient, low acoustic impedance, and low dielectric loss. In this study, Sm-doped PMN-PT ceramic/epoxy 1-3 composite with a ceramic volume fraction of 60% is fabricated by the dice-and-fill method, resulting in a high piezoelectric constant (650 pC/N) and clamped dielectric constant (2350). Utilizing the exceptionally high clamped dielectric constant, a low-frequency (12.4 MHz) ultrasound transducer is developed with a miniature aperture size (0.84 mm × 0.84 mm), exhibiting a −6 dB bandwidth of 70% and an insertion loss of −20.5 dB. The imaging capability of the miniature composite transducer is validated through both phantom and ex vivo imaging. The satisfactory results indicate that Sm-doped ceramic/epoxy composites possess significant potential for miniature devices in biomedical imaging applications. Full article
(This article belongs to the Special Issue Feature Papers in Journal of Composites Science in 2024)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop