Reflection and Refraction of Waves in Nano-Smart Materials: Anisotropic Thermo-Piezoelectric Materials

2014 ◽  
Vol 11 (3) ◽  
pp. 715-726 ◽  
Author(s):  
Abo-El-Nour N. Abd-Alla ◽  
Abdullah Y. Al-Hossain ◽  
Hanan Elhaes ◽  
Medhat Ibrahim
Keyword(s):  
Smart Materials ◽  
Piezoelectric Materials ◽  
Reflection And Refraction

scholarly journals Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

2021 ◽  
pp. 2100864
Author(s):  
Susmriti Das Mahapatra ◽  
Preetam Chandan Mohapatra ◽  
Adrianus Indrat Aria ◽  
Graham Christie ◽  
Yogendra Kumar Mishra ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Smart Materials ◽  
Piezoelectric Materials ◽  
Sensing Applications

Smart materials: Properties, design and mechatronic applications

2016 ◽  
Vol 233 (4) ◽  
pp. 734-762 ◽  
Author(s):  
A Spaggiari ◽  
D Castagnetti ◽  
N Golinelli ◽  
E Dragoni ◽  
G Scirè Mammano
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Smart Materials ◽  
Piezoelectric Materials ◽  
Magnetorheological Fluids ◽  
Research Perspective ◽  
Active Devices ◽  
Complete Survey ◽  
Basic Equations ◽  
Commercial Applications

This paper describes the properties and the engineering applications of the smart materials, especially in the mechatronics field. Even though there are several smart materials which all are very interesting from the research perspective, we decide to focus the work on just three of them. The adopted criterion privileges the most promising technologies in terms of commercial applications available on the market, namely: magnetorheological fluids, shape memory alloys and piezoelectric materials. Many semi-active devices such as dampers or brakes or clutches, based on magnetorheological fluids are commercially available; in addition, we can trace several applications of piezo actuators and shape memory-based devices, especially in the field of micro actuations. The work describes the physics behind these three materials and it gives some basic equations to dimension a system based on one of these technologies. The work helps the designer in a first feasibility study for the applications of one of these smart materials inside an industrial context. Moreover, the paper shows a complete survey of the applications of magnetorheological fluids, piezoelectric devices and shape memory alloys that have hit the market, considering industrial, biomedical, civil and automotive field.

Experimental Study of Machining of Smart Materials Using Submerged Abrasive Waterjet Micromachining Process

2018 ◽  
Author(s):  
Sagil James ◽  
Anurag Mahajan
Keyword(s):  
Experimental Study ◽  
Smart Materials ◽  
Thermal Stresses ◽  
Piezoelectric Materials ◽  
High Hardness ◽  
Machining Process ◽  
Critical Parameters ◽  
Abrasive Waterjet ◽  
Parameter Study ◽  
Wide Range

Smart materials are new generation materials which possess great properties to mend themselves with a change in environment. Smart materials find applications in a wide range of industries including biomedical, aerospace, defense and energy sector and so on. These materials possess unique properties including high hardness, high strength, high melting point and low creep behavior. Manufacturing of these materials is a huge challenge, particularly at the micron scale. Abrasive waterjet micromachining (AWJMM) is a non-traditional material removal process which has the capability of machining extremely hard and brittle materials such as glasses and ceramics. AWJMM process is usually performed with nozzle and workpiece placed in air. However, machining in the air causes spreading of the waterjet resulting in low machining quality. Performing the AWJMM process with a submerged nozzle and workpiece could eliminate this problem and also reduce noise, splash, and airborne debris particles during the machining process. This research investigates Submerged Abrasive Waterjet Machining (SAWJMM) process for micromachining smart ceramic materials. The research involves experimental study on micromachining of smart materials using an in-house fabricated SAWJMM setup. The effect of critical parameters including stand-off distance, abrasive grain size and material properties on the cavity size, kerf angle and MRR during SAWJMM and AWJMM processes are studied. The study found that SAWJMM process is capable of successfully machining smart materials including shape memory alloys and piezoelectric materials at the micron scale. The machined surfaced are free of thermal stresses and did not show any cracking around the edges. The critical process parameter study revealed that stand-off distance and abrasive grit size significantly affect the machining results.

Impact and acoustic emission performance of polyvinylidene fluoride sensor embedded in glass fiber-reinforced polymer composite structure

2020 ◽  
pp. 096739112091533
Author(s):  
Anjana Jain ◽  
Shivkumar Minajagi ◽  
Enoos Dange ◽  
Sushma U Bhover ◽  
YT Dharanendra
Keyword(s):  
Acoustic Emission ◽  
Glass Fiber ◽  
Smart Materials ◽  
Polyvinylidene Fluoride ◽  
Piezoelectric Materials ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced

Smart materials find vital applications in the aerospace industry due to their ability to adapt to surrounding conditions according to design requirements and applicability. Piezoelectric materials are commonly used under the category of smart materials for transducer applications. Among piezoelectric materials, piezo polymer polyvinylidene fluoride (PVDF) is widely used for structural health monitoring (SHM) applications of composite structures, acoustic emission (AE) sensor, accelerometer, strain gauge, pressure sensor, and so on because of its outstanding piezo stress constant ( g 33), piezo strain constant ( d 33), flexibility, and lightweight. In this article, glass fiber-reinforced polymer (GFRP) laminates have been prepared by embedding the PVDF sensor into GFRP for the first time. A detailed study has been done on the behavior and characterization of the PVDF sensor embedded in GFRP. The PVDF sensors embedded in laminates were subjected to impact test, where a constant weight of 5.5 kg was dropped from a height of 10–60 mm in the interval of 10 mm, and the voltage response of the PVDF sensor was recorded. Sensitivity analysis and AE test of the PVDF sensor in GFRP were also carried out. This is useful for various aerospace applications especially for SHM of aircraft.

scholarly journals Piezoelectric Sensing Techniques in Structural Health Monitoring: A State-of-the-Art Review

Sensors ◽  
2020 ◽  
Vol 20 (13) ◽  
pp. 3730 ◽  
Author(s):  
Pengcheng Jiao ◽  
King-James I. Egbe ◽  
Yiwei Xie ◽  
Ali Matin Nazar ◽  
Amir H. Alavi
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Smart Materials ◽  
State Of The Art ◽  
Piezoelectric Materials ◽  
Great Promise ◽  
Monitoring Systems ◽  
Electromechanical Impedance ◽  
Structural Health ◽  
Health Monitoring Systems

Recently, there has been a growing interest in deploying smart materials as sensing components of structural health monitoring systems. In this arena, piezoelectric materials offer great promise for researchers to rapidly expand their many potential applications. The main goal of this study is to review the state-of-the-art piezoelectric-based sensing techniques that are currently used in the structural health monitoring area. These techniques range from piezoelectric electromechanical impedance and ultrasonic Lamb wave methods to a class of cutting-edge self-powered sensing systems. We present the principle of the piezoelectric effect and the underlying mechanisms used by the piezoelectric sensing methods to detect the structural response. Furthermore, the pros and cons of the current methodologies are discussed. In the end, we envision a role of the piezoelectric-based techniques in developing the next-generation self-monitoring and self-powering health monitoring systems.

Automotive vibration and noise control using smart materials: a state of art and challenges

2013 ◽  
Vol 10 (6) ◽  
pp. 535-542
Author(s):  
S. Kumbhar ◽  
Subhasis Maji ◽  
Bimlesh Kumar
Keyword(s):  
Automotive Industry ◽  
Smart Materials ◽  
Piezoelectric Materials ◽  
New Materials ◽  
Market Place ◽  
The Past ◽  
Noise Vibration ◽  
Damping Materials ◽  
Damping Treatments ◽  
State Of Art

In the past several years, there has been increased market place awareness of noise, vibration, and harshness performance in automobiles. The differentiation between the quality and reliability levels of automobiles has become less pronounced and, as a result, manufacturers have had to demonstrate superiority by focusing on NVH concerns. The automotive industry is currently spending millions of dollars on NVH work to develop new materials and damping techniques so that the damping treatments are lighter, cheaper, and more effective. Some of the methods used to control noise, vibration, and harshness includes the use of different carpeting treatments, the addition of rubber or asphalt material to car panels, gap sealant, and the injection of expandable foam into body panels. The aim of this study is to explore the feasibility of smart damping materials such as magnet orheological elastomers (MRE), piezoelectric materials, with its basic properties, for augmenting and improving the performance benefits of damping materials. This study also evaluates the noise and vibration benefits of smart damping materials as compared to conventional damping treatments.

Design and Analysis of a XY Micro-Motion Stage Based on S Type Flexible Mechanism

2014 ◽  
Vol 635-637 ◽  
pp. 1216-1219
Author(s):  
Yue Min Yu
Keyword(s):  
Smart Materials ◽  
Piezoelectric Materials ◽  
Electrical Energy ◽  
Active Materials ◽  
Flexure Mechanism ◽  
Electromechanical Energy Conversion ◽  
Electromechanical Energy ◽  
Flexible Mechanism ◽  
Micro Motion ◽  
Motion Stage

Piezoelectric materials is a kind of the most common smart materials whose geometric shape can be related to an energy input in the form of electric field. In the application of active materials to electromechanical energy conversion, electrical energy may be input to the material and the resulting deformation of the material can be used to move a load. In this paper, a XY micro-motion stage is designed based s type flexure mechanism and driven through piezoelectric ceramic stack. From the analysis, it can achieve X direction 6.5μm, Y direction 9.7μm micro-displacement output.The results indicate that, the XY micro-motion stage all are satisfy the need of design.

scholarly journals Sustainability of Civil Structures through the Application of Smart Materials: A Review

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4824
Author(s):  
Alireza Tabrizikahou ◽  
Mieczysław Kuczma ◽  
Piotr Nowotarski ◽  
Małgorzata Kwiatek ◽  
Ahad Javanmardi
Keyword(s):  
Shape Memory ◽  
Smart Materials ◽  
Significant Relationship ◽  
Piezoelectric Materials ◽  
Structural Characteristics ◽  
Design Methods ◽  
Seismic Events ◽  
Civil Structures ◽  
Comprehensive Review ◽  
The Relationship

Every year, structural flaws or breakdowns cause thousands of people to be harmed and cost billions of dollars owing to the limitations of design methods and materials to withstand extreme earthquakes. Since earthquakes have a significant effect on sustainability factors, there is a contradiction between these constraints and the growing need for more sustainable structures. There has been a significant attempt to circumvent these constraints by developing various techniques and materials. One of these viable possibilities is the application of smart structures and materials such as shape memory and piezoelectric materials. Many scholars have examined the use of these materials and their structural characteristics up to this point, but the relationship between sustainability considerations and the deployment of smart materials has received little attention. Therefore, through a review of previous experimental, numerical, and conceptual studies, this paper attempts to draw a more significant relationship between smart materials and structural sustainability. First, the significant impact of seismic events on structural sustainability and its major aspects are described. It is then followed by an overview of the fundamentals of smart material’s behaviour and properties. Finally, after a comprehensive review of the most recent applications of smart materials in structures, the influence of their deployment on sustainability issues is discussed. The findings of this study are intended to assist researchers in properly addressing sustainability considerations in any research and implementation of smart materials by establishing a more explicit relationship between these two concepts.

scholarly journals Proof of Principle of a Rotating Actuator Based on Magnetostrictive Material with Simultaneous Vibration Amplitude

Actuators ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 81 ◽  
Author(s):  
Christian Titsch ◽  
Qiang Li ◽  
Simon Kimme ◽  
Welf-Guntram Drossel
Keyword(s):  
Magnetic Field ◽  
Smart Materials ◽  
Vibration Amplitude ◽  
Piezoelectric Materials ◽  
Longitudinal Direction ◽  
Ultrasonic Machining ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Machining ◽  
The Magnetic Field ◽  
Proof Of Principle

Magnetostrictive materials are a group of smart materials with comparable properties to piezoelectric materials regarding strain and operating frequency. In contrast, the Curie temperature is much higher and the principle effect allows different actuator designs. Especially in the case of rotating actuators in ultrasonic assisted machining, a high potential is seen for a simplified energy transmission. In the study, a test stand for a rotating actuator with simultaneous vibration in longitudinal direction was designed to show the proof of principle for this idea. It was shown that the current inducing the magnetic field as well as its frequency influence the amplitude of the rotating actuator. This is a first step to developing a rotating actuator for ultrasonic machining.

A Comprehensive Review of Smart Systems through Smart Materials

2019 ◽  
Vol 12 (1) ◽  
pp. 77-82 ◽  
Author(s):  
A. Vasanthanathan ◽  
S. Menaga ◽  
K. Rosemi
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Smart Materials ◽  
Piezoelectric Materials ◽  
Vital Role ◽  
Automotive Electronics ◽  
Fibre Optic ◽  
Comprehensive Review ◽  
Intelligent Materials ◽  
Smart Systems

Background:The vital role of smart materials in the field of aircraft, spacecraft, defence, electronics, electrical, medical and healthcare industries involve sensing and actuating for monitoring and controlling applications. The class of smart materials are also named as active materials or intelligent materials or adaptive materials. These materials act intelligently based upon the environmental conditions. Structures incorporated with smart materials are named as smart structures.Methods:The principal objective of the present paper is to explore a comprehensive review of various smart materials viz. piezoelectric materials, Shape Memory Alloy, micro sensors and fibre optic sensors. The significance of these intelligent materials in various fields are also deliberately presented in this work from the perspective of Patents and literatures test data.Results:Smart Materials possesses multifunctional capabilities. The smart materials viz. piezoelectric materials, Shape Memory Alloy, micro sensors and fibre optic sensors are embedded with structures like aircraft, spacecraft, automotive, bridges, and buildings for the purpose of exhibiting Structural Health Monitoring system. Smart materials are finding increasing applications in the present aircraft, spacecraft, automotive, electronics and healthcare industries.Conclusion:Innovative ideas would become reality by integrating the any structure with Smart Materials.

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