Functional Fiber-Reinforced Composites

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: closed (25 August 2023) | Viewed by 2505

Special Issue Editors

School of Automobile, Chang'an University, Middle Section of Nan Erhuan Road, Xi'an City 710064, China
Interests: composite structures; mechanics of lattice materials; multi-scale modeling; crashworthiness; lightweight design
Special Issues, Collections and Topics in MDPI journals
School of Automobile, Chang'an University, Middle Section of Nan Erhuan Road, Xi'an City 710064, China
Interests: composite formability; composite crashworthiness; optimization design of composite
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

Functional fiber-reinforced composites are a relatively new class of chemically resistant, high-performance, high-functionalization and lightweight composite materials. Over the past decade, this class of materials has always been a topic of significant interest, and they are widely applied in various fields: aircraft, automotive, construction, energy, and many others. In this Special Issue, we are collecting the most interesting results in this area. A wide range of topics will be considered. We welcome the submission of articles considering any of the following: properties of functional reinforcing fibers, advanced fiber preparation, functionally modified fiber-reinforced composites, formation of functional composite materials, application of functional fiber-reinforced composites, and the properties of functional composite materials themselves.

Dr. Guohua Zhu
Dr. Zhen Wang
Guest Editors

Manuscript Submission Information

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Keywords

  • fiber-reinforced composites
  • functional fibers
  • functional composites
  • design theories and methods
  • virtual manufacturing and virtual testing
  • structural properties

Published Papers (1 paper)

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Research

18 pages, 6028 KiB  
Article
On Crashworthiness and Energy-Absorbing Mechanisms of Thick CFRP Structures for Railway Vehicles
by Dongdong Chen, Xiaoyu Sun, Benhuai Li, Yanwen Liu, Tao Zhu and Shoune Xiao
Polymers 2022, 14(22), 4795; https://doi.org/10.3390/polym14224795 - 8 Nov 2022
Cited by 9 | Viewed by 2178
Abstract
This study aims to provide important guidelines for the crashworthiness design of composite energy-absorbing structures, especially railway vehicles. An experimental and numerical investigation was carried out to explore the crushing response of circular composite tubes reinforced with plain woven carbon fiber-reinforced polymers (CFRP). [...] Read more.
This study aims to provide important guidelines for the crashworthiness design of composite energy-absorbing structures, especially railway vehicles. An experimental and numerical investigation was carried out to explore the crushing response of circular composite tubes reinforced with plain woven carbon fiber-reinforced polymers (CFRP). Quasi-static and dynamic axial crushing tests were performed on CFRP tubes with an inner diameter of 100 mm and a nominal wall thickness of 12 mm. Experimental results showed that increasing loading velocity led to a 21.8% reduction in specific energy absorption (from 99.7 kJ/kg to 78.7 kJ/kg) but had negligible influence on failure modes. Finite element models were also established and validated against the experimental results using ABAQUS/Explicit software. The effects of several different parameters such as the number of shell layers, friction coefficient, and interface properties on the simulated results, were also investigated and analyzed. A small variation in these parameters could change the total energy absorption of CFRP tubes. The comparisons between the predicted and experimental results indicated that a finite element model with 10 shell layers could effectively replicate the crushing response. In addition, the simulated results indicated that the damage of tubal wall materials dominated the major energy-absorbing mechanisms of CFRP tubes under quasi-static loads, which was 69.1% of the total energy. The energy dissipated by friction effects between the loading platen and the crushed fronds was 24.1% of the total energy. The increase in the loading velocity led to a decrease in the composite damage energy except for friction energy, resulting in a decrease in the total energy absorption. Full article
(This article belongs to the Special Issue Functional Fiber-Reinforced Composites)
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