Multiscale Composite Materials Characterization—Manufacturing, Testing and Structural Integrity Analysis, Volume II

A special issue of Journal of Composites Science (ISSN 2504-477X). This special issue belongs to the section "Composites Manufacturing and Processing".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 3100

Special Issue Editors


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Guest Editor
Department of Industrial Engineering, Alma Mater Studiorum University of Bologna, Bologna, Italy
Interests: composites; finite element method; design optimization; additive manufacturing
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Guest Editor
Karpenko Physico-Mechanical Institute of National Academy of Sciences of Ukraine, Lviv, Ukraine
Interests: materials degradation; physical chemistry; nanostructures; damage mechanics
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Guest Editor
Department of Mechanics, Materials Science and Engineering, Wroclaw University of Science and Technology, Wroclaw, Poland
Interests: composites; materials chemistry; polymers; materials engineering; technology; pressure vessels and pipes
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Special Issue Information

Dear Colleagues,

This special issue is primarily devoted to issues related to strength and optimization of composite structures - mainly, but not limited to, polymer matrix composites. The most important objective of the collected works is to model the behaviour of composites in the production phase, as well as under mechanical and environmental stresses. Particularly valuable will be the works showing the methodology of modelling (analytical and numerical) from the sub-micro scale up to the global behaviour of composite systems. It is also highly recommended to expect papers related to applying new materials and technologies with respect to mechanical performance and materials behaviour in terms of modelling various phenomena (creep, fatigue) and many other factors that constitute materials reliability in engineering applications. Accordingly, continued improvements on reliability assessment have been possible through the accurate modeling of failure mechanisms in lightweight composite structures by introducing advanced mathematical approaches/tools. Through combining the deterministic and probabilistic modeling techniques, research on failure mechanism and reliability can provide assurance for new structures at the design stage and ensure the integrity in the construction at the fabrication phase. As the modelling is only as good as the input data, valuable addition would be also experimental mechanics aimed at improved understanding of the materials behaviour. The aim of this issue would be to provide the data, models and tools necessary to performing structural integrity and lifetime prediction of composite structures using various length scales, resulting in the use of advanced mathematical, numerical and experimental techniques.

Dr. Grzegorz Lesiuk
Dr. Ana Pavlovic
Dr. Olha Zvirko
Dr. Michał Barcikowski
Guest Editors

Manuscript Submission Information

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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

  • multiscale modeling
  • composites
  • damage
  • layered structures
  • numerical analysis
  • manufacturing technology
  • mechanical behaviour
  • degradation
  • additive manufactuirng in composites
  • 3D printing
  • polymer based on AM
  • measurements and quality control

Published Papers (3 papers)

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Research

13 pages, 2361 KiB  
Article
Evaluation of Benzene Adsorption onto Grass-Derived Biochar and Comparison of Adsorption Capacity via RSM (Response Surface Methodology)
by Yuhyeon Na, Seung Hyeon Weon, Gyu-Won Lee, Hyung Joo Kim, Sang Hyun Lee, Young-Hoo Kim, Ji Eun Kim, Gwangnam Kang, Saerom Park and Yong-Keun Choi
J. Compos. Sci. 2024, 8(4), 132; https://doi.org/10.3390/jcs8040132 - 05 Apr 2024
Viewed by 453
Abstract
The present study reports the effective removal of benzene in aqueous phase onto biochar. The adsorption capacity of benzene onto biochars made at different pyrolytic temperatures (e.g., 350, 550, and 750 °C) and from various feedstocks (e.g., grape pomace, rice husk, and Kentucky [...] Read more.
The present study reports the effective removal of benzene in aqueous phase onto biochar. The adsorption capacity of benzene onto biochars made at different pyrolytic temperatures (e.g., 350, 550, and 750 °C) and from various feedstocks (e.g., grape pomace, rice husk, and Kentucky bluegrass) were investigated. The adsorption capacity of Kentucky bluegrass-derived biochar (KB-BC) prepared at 550 °C for benzene was better than other biochars, owing to the higher surface area and functional groups. The adsorption isotherms and kinetics model for benzene by KB-BC550 fitted the Freundlich and pseudo-first order, respectively. In addition, the results of response surface methodology (RSM) designed with biochar dose, reaction time, and benzene concentration showed the maximum adsorption capacity (ca. 136 mg BZ/g BC) similar to that from kinetic study. KB-BCs obtained as waste grass biomass may be a valuable adsorbent, and RSM may be a useful tool for the investigation of optimal conditions and results. Full article
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17 pages, 9569 KiB  
Article
Experimental and Numerical Study of Bearing Damage of a CF-LMPAEK Thermoplastic Composite
by Thomas Zaragkas, Spyridon Psarras, George Sotiriadis and Vassilis Kostopoulos
J. Compos. Sci. 2024, 8(1), 35; https://doi.org/10.3390/jcs8010035 - 18 Jan 2024
Viewed by 1289
Abstract
This study focuses on investigating the behavior of a thermoplastic matrix composite (Carbon Fiber-LMPAEK) under a bearing strength determination test. The specimens were subjected to a double-shear-bolted joint configuration tensile test, and the propagation of damage was monitored using extensometers. The research employs [...] Read more.
This study focuses on investigating the behavior of a thermoplastic matrix composite (Carbon Fiber-LMPAEK) under a bearing strength determination test. The specimens were subjected to a double-shear-bolted joint configuration tensile test, and the propagation of damage was monitored using extensometers. The research employs a technique that involves inelastic modelling and considers discrepancies in layer interfaces to better understand bearing damage propagation. In this context, cohesive modelling was utilized in all composite layers, and the Hashin damage propagation law was applied. The double-shear-bolted joint configuration chosen for the test revealed critical insights into the bearing strength determination of the Carbon Fiber-LMPAEK thermoplastic matrix composite. This comprehensive approach, combining inelastic modelling and considerations for layer interfaces, provided a nuanced understanding of the material’s response to bearing forces. The results of the study demonstrated that all specimens exhibited the desired type of bearing failure, characterized by severe delamination around the hole. Interestingly, the thermoplastic matrix composite showcased enhanced bearing properties compared to traditional thermoset materials. This observation underscores the potential advantages of thermoplastic composites in applications requiring robust bearing strength. One noteworthy aspect highlighted by the study is the inadequacy of current aerospace standards in prescribing the accumulation of bearing damage in thermoplastic composites. The research underscores the need for a more strategic modelling approach, particularly in cohesive modelling, to accurately capture the behavior of thermoplastic matrix composites under bearing forces. In summary, this investigation not only provides valuable insights into the bearing strength of Carbon Fiber-LMPAEK thermoplastic matrix composites, but also emphasizes the necessity for refining aerospace standards to address the specific characteristics and failure modes of these advanced materials. Full article
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18 pages, 5687 KiB  
Article
Physical and Chemical Studies of Smelting Products of Calcinated Composite Pellets Produced from Chromium Production Waste
by Almagul Ultarakova, Yerbulat Tastanov, Nurzhan Sadykov, Aisha Tastanova and Zhadyra Yerzhanova
J. Compos. Sci. 2023, 7(9), 386; https://doi.org/10.3390/jcs7090386 - 14 Sep 2023
Cited by 2 | Viewed by 1054
Abstract
This study presents the results of the enlarged laboratory research on the melting of calcined composite pellets for ferrochrome obtained from fine-dispersed conditioned chrome concentrate containing 50.3% Cr2O3. This is a product of the gravitational beneficiation of waste sludge [...] Read more.
This study presents the results of the enlarged laboratory research on the melting of calcined composite pellets for ferrochrome obtained from fine-dispersed conditioned chrome concentrate containing 50.3% Cr2O3. This is a product of the gravitational beneficiation of waste sludge tailings from the Dubersay tailings dump at the Donskoy Mining and Processing Plant (DMPP) of JSC “TNC Kazchrome”. The composition of the charge for obtaining composite pellets consisted of 88.5% of chrome concentrate, 3% of mineral part of refined ferrochrome slag (RFC), 4% of ferruginous diatomite, 3% of coke and 1.5% of liquid glass. The initial charge was pelletized on a laboratory pelletizer to a size of 6–10 mm, dried at room temperature for 24 h and fired at 1200 °C for 60 min at a heating rate of 15 deg/min. On the basis of the developed composite annealed pellets, studies on the production of high-carbon ferrochrome at different melting temperatures were carried out. The results showed that with an increase in temperature from 1750 to 1850 °C, the iron–chromium phase in the composition of the alloy increases from 45.2 to 50.1%, the chromium carbide phase decreases from 23.7 to 11.3% and the chromium–iron phase increases from 7 to 11.2%. The carbon content in the alloys at temperatures from 1750 to 1850 °C varies from 7.2 to 8.94%, respectively. The maximum chromium content of the alloy is 64.82% with a melting point of 1850 °C; this alloy can be classified as FeCr60C90LP grade ferrochrome according to the international Chinese standard, which has no more than 0.03% phosphorus and no more than 0.1% sulfur. Full article
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