Polymers and Polymeric Composites Application for Mechanical Engineering

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: 25 August 2024 | Viewed by 3339

Special Issue Editor


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Guest Editor
Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, China
Interests: solid mechanics; viscoelastic material; composite structures; wave motion

Special Issue Information

Dear Colleagues,

Polymers and polymeric composites show viscoelasticity, which has been applied as a damping design for elastic wave energy dissipation in engineering practice, such as in the fields of aerospace, transportation, military and mechanical engineering. At present, with the trend towards energy conservation, lighter-weight and higher-speed design for mechanical structures and equipment, the acoustic and vibration problems are amplified, and the response structures are potentially larger and less desirable. Through the theory of elastic wave propagation in solid media and the energy dissipation mechanism of viscoelastic damping, polymers and polymeric composites can be considered efficient materials with the potential to conquer these issues. This Special Issue focuses on recent advances in polymers, polymeric composites and related applications for mechanical engineering in terms of elastic wave dissipation. Both reviews and original research papers are acceptable, on the following topics of polymers and polymeric composite structures: 

  • Elastic wave motion, mechanical energy dissipation;
  • Acoustic and vibration attenuation;
  • Sound radiation, resistance, transmission loss, reflection;
  • Impact, shock and explosive response;
  • Mechanics constitutive model construction;
  • High-strength and toughened design.

Dr. Xiaoqiang Zhou
Guest Editor

Manuscript Submission Information

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Keywords

  • viscoelastic polymer materials
  • composite structures
  • mechanical engineering
  • sound and vibration
  • structural dynamics
  • elastic wave propagation

Published Papers (2 papers)

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Research

12 pages, 4523 KiB  
Article
Free-Standing CNT Film for Interlaminar Toughening: Insight into Infiltration and Thickness Effects
by Anran Fu, Yunfu Ou, Longqiang Wu, Yunxiao Zhang, Yiting Weng and Dongsheng Mao
Polymers 2023, 15(17), 3579; https://doi.org/10.3390/polym15173579 - 29 Aug 2023
Cited by 1 | Viewed by 1049
Abstract
Carbon fiber reinforced polymer composites have the advantages of being lightweight, having high strength and designability, and having been extensively used. However, the interlaminar toughness and delamination resistance of these composites are relatively poor due to their laminated structure and intrinsic brittleness of [...] Read more.
Carbon fiber reinforced polymer composites have the advantages of being lightweight, having high strength and designability, and having been extensively used. However, the interlaminar toughness and delamination resistance of these composites are relatively poor due to their laminated structure and intrinsic brittleness of resin matrix. In this paper, commercialized free-standing carbon nanotube (CNT) films, drawn from CNT forests, were used to toughen the interlaminar interfaces of the composites. The effects of resin infiltration state and thickness of CNT films on the interlaminar toughening effect were systematically investigated. The results show that the pre-infiltration treatment of CNT films with acetone diluted epoxy resin solution can effectively improve the degree of resin infiltration. Compared with the samples containing untreated CNT film, the Mode I and Mode II interlaminar fracture toughness of the treated samples were significantly improved. The GIC reached a maximum of 1412.42 J/m2 at a CNT film thickness of 5 µm, which was about 61.38% higher than that of the baseline. At a CNT film thickness of 15 µm, the GIIC reached a maximum value of 983.73 J/m2, approximately 67.58% higher than that of the baseline. The corresponding toughening mechanisms were also systematically analyzed. Full article
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20 pages, 5748 KiB  
Article
Buckling Analysis on Resin Base Laminated Plate Reinforced with Uniform and Functional Gradient Distribution of Carbon Fiber in Thermal Environment
by Xiaoqiang Zhou, Qingquan You, Yuan Gao, Fenfei Hua, Wanbiao Fu, Qingyang Huang and Yuanfang Wang
Polymers 2023, 15(9), 2086; https://doi.org/10.3390/polym15092086 - 27 Apr 2023
Cited by 1 | Viewed by 1460
Abstract
The present paper aims to investigate the buckling load of functionally graded carbon-fiber-reinforced polymer (FG-CFRP) composite laminated plates under in-plane loads in a thermal environment. The effective material properties of the CFRP composite are calculated by the Mori–Tanaka homogenization method. The theoretical formulations [...] Read more.
The present paper aims to investigate the buckling load of functionally graded carbon-fiber-reinforced polymer (FG-CFRP) composite laminated plates under in-plane loads in a thermal environment. The effective material properties of the CFRP composite are calculated by the Mori–Tanaka homogenization method. The theoretical formulations are based on classical laminate plate theory (CLPT) and the von Kármán equations for large deflections. The governing equations are derived based on the principle of virtual work and then solved through the Navier solution. Results are obtained for the critical buckling load and temperature effect of a simply supported plate subjected to in-plane loading. A detailed numerical study is conducted to provide important insights into the effects of the functionally graded carbon fiber (CF) distribution pattern and volume fraction, total number of layers, temperature, geometrical dimension and lamination angle on the buckling load of functionally carbon-fiber-reinforced composite plates. Finally, the validation is compared with the Reddy and finite element analyses, which show consistency with each other. Full article
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