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Smart Materials and Structures for Flexible Electronics and Advanced Devices
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Smart Materials and Structures for Flexible Electronics and Advanced Devices

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Smart Materials".

Deadline for manuscript submissions: 20 August 2024 | Viewed by 2815

Special Issue Editors

Prof. Dr. Weiqiu Chen

E-Mail Website
Guest Editor
Department of Engineering Mechanics, School of Aeronautics and Astronautics, Zhejiang University, No. 38, Zheda Road, Hangzhou, China
Interests: mechanics of advanced materials and structures; waves and vibrations in structures; mechanics of three-dimensional contact and crack problems; metamaterials and their mechanical responses; analytical methods in applied mathematics and mechanics
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Chuanzeng Zhang

E-Mail Website
Guest Editor
Department of Civil Engineering, School of Science and Technology, University of Siegen, Paul-Bonatz-Str. 9-11, 57076 Siegen, Germany
Interests: acoustic and elastic metamaterials; elastodynamics and structural mechanics; mechanics of smart materials and structures; mechanics of functionally graded materials and structures; computational mechanics; computational material sciences
Dr. Bin Wu

E-Mail Website
Guest Editor
Department of Engineering Mechanics, School of Aeronautics and Astronautics, Zhejiang University, No. 38, Zheda Road, Hangzhou, China
Interests: mechanics of smart materials and structures; soft matter mechanics; instability and post-buckling; elastodynamics; tunable phononic crystals and metamaterials; wave mechanics; fluid–structure interactions

Special Issue Information

Dear Colleagues,

Due to the superior characteristics and high performance of novel functional flexible devices, evidenced by their ultra-light weight, unbreakability, tailorable size, and low cost, the last decade has witnessed an explosion of developments and applications of flexible electronics and advanced devices in various fields. Such advanced devices includ smart sensors, soft robotics, flexible ultrasonic devices, bio-integrated energy harvesting devices, biomedical devices, reconfigurable electronics, wearable haptics, micro-/nano-electro-mechanical systems (MEMS and NEMS), mechanical/optical metamaterials and micro-fluidic systems. These emerging advanced functional devices have been developed extensively in recent years using smart materials and structures that can be reversibly activated by external stimuli. This Special Issue aims to establish a multidisciplinary forum for discussions on the most recent research developments in smart materials and structures for flexible electronics and advanced devices, as well as provide vision for future studies.

We are pleased to invite you to submit your original research articles and reviews on smart flexible electronics and advanced devices. Theoretical, computational and experimental studies are all welcome. Potential topics include but are not limited to the following:

  • Mechanics of flexible devices based on smart materials and structures;
  • Smart materials and structures for soft robotics;
  • Smart materials and structures for flexible ultrasonic devices;
  • Smart materials and structures for reconfigurable electronics;
  • Smart materials and structures for intelligent metamaterials;
  • Smart materials and structures for flexible energy-harvesting devices;
  • Smart materials and structures for wearable haptics;
  • Smart materials and structures for biomedical devices;
  • Smart hydrogel electronics.

We look forward to receiving your contributions.

Prof. Dr. Weiqiu Chen
Prof. Dr. Chuanzeng Zhang
Dr. Bin Wu
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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • smart materials
  • flexible sensors
  • flexible actuators
  • novel functional devices
  • soft robotics
  • intelligent metamaterials
  • wearable haptics
  • flexible ultrasonic devices
  • biomedical devices
  • reconfigurable electronics

Published Papers (3 papers)

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Research

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14 pages, 12677 KiB  
Article
Wave Propagation in the Viscoelastic Functionally Graded Cylindrical Shell Based on the First-Order Shear Deformation Theory
by Yunying Zhou, Dongying Liu, Dinggui Hou, Jiahuan Liu, Xiaoliang Li and Zhijie Yue
Materials 2023, 16(17), 5914; https://0-doi-org.brum.beds.ac.uk/10.3390/ma16175914 - 29 Aug 2023
Viewed by 640
Abstract
Based on the first-order shear deformation theory (FSDT) and Kelvin–Voigt viscoelastic model, one derives a wave equation of longitudinal guide waves in viscoelastic orthotropic cylindrical shells, which analytically solves the wave equation and explains the intrinsic meaning of the wave propagation. In the [...] Read more.
Based on the first-order shear deformation theory (FSDT) and Kelvin–Voigt viscoelastic model, one derives a wave equation of longitudinal guide waves in viscoelastic orthotropic cylindrical shells, which analytically solves the wave equation and explains the intrinsic meaning of the wave propagation. In the numerical examples, the velocity curves of the first few modes for the elastic cylindrical shell are first calculated, and the results of the available literature are compared to verify the derivation and programming. Furthermore, the phase velocity curves and attenuation coefficient curves of the guide waves for a functionally graded (FG) shell are calculated, and the effects of viscoelastic parameters, material gradient patterns, material volume fractions, and size ratios on the phase velocity curves and attenuation curves are studied. This study can be widely used to analytically model the wave propagating in inhomogeneous viscoelastic composite structures and present a theoretical basis for the excellent service performance of composite structures and ultrasonic devices. Full article
(This article belongs to the Special Issue Smart Materials and Structures for Flexible Electronics and Advanced Devices)
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Review

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24 pages, 4300 KiB  
Review
Electromechanical Deformations and Bifurcations in Soft Dielectrics: A Review
by Yipin Su, Xudong Shen, Zinan Zhao, Bin Wu and Weiqiu Chen
Materials 2024, 17(7), 1499; https://0-doi-org.brum.beds.ac.uk/10.3390/ma17071499 - 26 Mar 2024
Viewed by 495
Abstract
Dielectric elastomers have attracted considerable attention both from academia and industry alike over the last two decades due to their superior mechanical properties. In parallel, research on the mechanical properties of dielectrics has been steadily advancing, including the theoretical, experimental, and numerical aspects. [...] Read more.
Dielectric elastomers have attracted considerable attention both from academia and industry alike over the last two decades due to their superior mechanical properties. In parallel, research on the mechanical properties of dielectrics has been steadily advancing, including the theoretical, experimental, and numerical aspects. It has been recognized that the electromechanical coupling property of dielectric materials can be utilized to drive deformations in functional devices in a more controllable and intelligent manner. This paper reviews recent advances in the theory of dielectrics, with specific attention focused on the theory proposed by Dorfmann and Ogden. Additionally, we provide examples illustrating the application of this theory to analyze the electromechanical deformations and the associated bifurcations in soft dielectrics. We compared the bifurcations in elastic and dielectric materials and found that only compressive bifurcation modes exist in elastic structures, whereas both compressive and tensile modes coexist in dielectric structures. We summarize two proposed ways to suppress and prevent the tensile bifurcations in dielectric materials. We hope that this literature survey will foster further advancements in the field of the electroelastic theory of soft dielectrics. Full article
(This article belongs to the Special Issue Smart Materials and Structures for Flexible Electronics and Advanced Devices)
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31 pages, 10303 KiB  
Review
Rational Design of Flexible Mechanical Force Sensors for Healthcare and Diagnosis
by Hang Zhang and Yihui Zhang
Materials 2024, 17(1), 123; https://0-doi-org.brum.beds.ac.uk/10.3390/ma17010123 - 26 Dec 2023
Cited by 1 | Viewed by 1173
Abstract
Over the past decade, there has been a significant surge in interest in flexible mechanical force sensing devices and systems. Tremendous efforts have been devoted to the development of flexible mechanical force sensors for daily healthcare and medical diagnosis, driven by the increasing [...] Read more.
Over the past decade, there has been a significant surge in interest in flexible mechanical force sensing devices and systems. Tremendous efforts have been devoted to the development of flexible mechanical force sensors for daily healthcare and medical diagnosis, driven by the increasing demand for wearable/portable devices in long-term healthcare and precision medicine. In this review, we summarize recent advances in diverse categories of flexible mechanical force sensors, covering piezoresistive, capacitive, piezoelectric, triboelectric, magnetoelastic, and other force sensors. This review focuses on their working principles, design strategies and applications in healthcare and diagnosis, with an emphasis on the interplay among the sensor architecture, performance, and application scenario. Finally, we provide perspectives on the remaining challenges and opportunities in this field, with particular discussions on problem-driven force sensor designs, as well as developments of novel sensor architectures and intelligent mechanical force sensing systems. Full article
(This article belongs to the Special Issue Smart Materials and Structures for Flexible Electronics and Advanced Devices)
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