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J. Compos. Sci.
Special Issues
Vibration-based Energy Harvesting Techniques via Smart Materials and Structures
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Vibration-based Energy Harvesting Techniques via Smart Materials and Structures

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: closed (31 October 2021) | Viewed by 2891

Special Issue Editors

Dr. S.K. Lai

E-Mail Website
Guest Editor
Department of Civil and Environmental Engieering, The Hong Kong Polytechnic University, Hong Kong, China
Interests: smart materials and structures; nonlinear dynamics; energy harvesting
Prof. Dr. Songye Zhu

E-Mail Website
Guest Editor
Department of Civil and Environmental Engieering, The Hong Kong Polytechnic University, Hong Kong, China
Interests: smart materials and structures; structural health monitoring; energy harvesting
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Smart cities are entering a new era, in which information and communication technologies are used to enhance the quality and performance of urban services. The evolution of IoT technologies to increase human interaction will require a fundamental change that enables the vast deployment of sensors everywhere. One viable solution is to autonomously harness energy from the ambient environment. With the ongoing development of wireless sensor networks and portable electronic devices, energy harvesting from ambient sources using various smart materials and structures has received significant research attention. This Special Issue aims to bring together research efforts on this topic, and we encourage that all papers in this Special Issue consider various aspects of vibration-based energy harvesting techniques using smart materials and structures.

Dr. S.K. Lai
Prof. Songye Zhu
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. 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

  • Vibration-based energy harvesting
  • Smart materials and structures
  • Piezoelectric effect
  • Triboelectric effect
  • Electromagnetic effect
  • Shape memory alloys

Published Papers (1 paper)

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Research

21 pages, 23147 KiB  
Article
Multiscale Toughening of Composites with Carbon Nanotubes—Continuous Multiscale Reinforcement New Concept
by Monssef Drissi-Habti, Yassine El Assami and Venkadesh Raman
J. Compos. Sci. 2021, 5(5), 135; https://doi.org/10.3390/jcs5050135 - 18 May 2021
Cited by 7 | Viewed by 2508
Abstract
Strengthening composite structures for advanced industries such as offshore wind generation is a real issue. Due to the huge dimensions expected for next generation wind-blades, composites based on glass fibers can no longer be used due to the lack of stiffness, whereas composites [...] Read more.
Strengthening composite structures for advanced industries such as offshore wind generation is a real issue. Due to the huge dimensions expected for next generation wind-blades, composites based on glass fibers can no longer be used due to the lack of stiffness, whereas composites based on carbon fibers are expensive. Therefore, switching to alternative structural solutions is highly needed. This might be achieved by appropriate use of carbon nanotubes (CNTs) either as fillers of epoxy matrices, especially in inter-plies, or as fillers of epoxy glues used in structural bonding joints. As an example, trailing edges of offshore wind-blades are addressed in the current article, where monolithic bonding holds together the two structural halves and where the risk of sudden and brittle separation of edges while wind-turbines are in service is quite high. This can lead to tedious and very expensive maintenance, especially when keeping in mind the huge dimensions of new generation wind turbine blades that exceed lengths of 100 m. Bond joints and composites inter-plies of the final CNT-reinforced structures will exhibit stiffness and toughness high enough to face the severe offshore environment. In this article, multiscale Finite Element (FE) modeling is carried out to evaluate mechanical properties following the addition of CNTs. To achieve an optimal reinforcement, the effect of inclination of CNTs vs. mechanical loading axis is studied. Two innovations are suggested through this numerical study: The first consists of using homogenization in order to evaluate the effects of CNT reinforcement macroscopically. The second innovation lies in this forward-looking idea to envisage how we can benefit from CNTs in continuous fiber composites, as part of a deep theoretical rethinking of the reinforcement mechanisms operating at different scales and their triggering kinetics. The presented work is purely numerical and should be viewed as a “scenario” of structural composite materials of the future, which can be used both in the offshore industry and in other advanced industries. More broadly and through what is proposed, we humbly wish to stimulate scientific discussions about how we can better improve the performances of structural composite materials. Full article
(This article belongs to the Special Issue Vibration-based Energy Harvesting Techniques via Smart Materials and Structures)
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