Article
Materials Science, Multidisciplinary
Yaonan Yu, Yuki Kubota, Hiroki Kurita, Fumio Narita
Summary: In this study, a piezoelectric glass-fiber-reinforced polymer (piezo-GFRP) sensor was used to monitor the mechanical behavior of cement beams with cracks in real-time. The output voltage and frequency of the sensor were proven to be effective feedback signals for determining the mechanical behavior. The results indicated that this thin piezo-GFRP sensor has sufficient sensitivity to monitor slight variations in the mechanical behavior of cement beams during the early stages of cracking. Therefore, these sensors have the potential for multifunctional structural health monitoring of engineering structures.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Analytical
Wei-Han Cheng, Ping-Lun Wu, Hsin-Haou Huang
Summary: A PVDF/GNP micro-nanocomposite membrane was fabricated and used in the production of a fiber-reinforced polymer composite laminate. With the addition of carbon fibers as electrodes in the sensing layer, the membrane conferred multifunctional piezoelectric self-sensing ability. The laminate demonstrated both favorable mechanical properties and sensing ability. The effects of different concentrations of modified CNTs and GNPs on the morphology of PVDF fibers and the beta-phase content of the membrane were investigated, and the most stable and highest beta-phase content PVDF fibers were embedded in the laminate for practical testing.
Article
Multidisciplinary Sciences
Abba A. Abubakar, Samir Mekid, Hammam Daraghma, Nouari Saheb
Summary: This paper discusses the embedding conditions of fiber-optic sensors in powder-based materials using two different techniques, aiming to build haptic sensorial materials for robotics applications. The results show promising possibilities for sensors to be embedded and located anywhere inside the material, with good agreement between numerical modeling and experimental analysis, supporting the preparation of experiments and manufacturing processes with parts having complex geometries.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Rajani Kant Rao, Saptarshi Sasmal
Summary: In this study, an AC-based electro-mechanical impedance (EMI) technique was utilized to evaluate the performance of smart cementitious composite-based impedance sensor (SCC-iS) over a frequency range, and then it was employed as an embeddable sensor for real-time monitoring of damage in concrete structures. Experimental results showed that 0.50 wt% CNT concentration is the optimum for developing efficient SCC-iS. Under compressive loading, the electrical variation in impedance (EVZ) and electrical variation in conductance (EVC) in SCC-iS demonstrate correlation with compressive strain and can detect damage effectively.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Materials Science, Composites
LoriAnne Groo, Daniel J. Inman, Henry A. Sodano
Summary: This work presents a novel multifunctional fiber reinforced composite that relies on a thermally stable piezoelectric response without the need for external sensors, simplifying the process of monitoring complex structures.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Hyung Doh Roh, Biplab K. Deka, Hyung Wook Park, Young-Bin Park
Summary: A novel multifunctional composite has been developed, combining the functions of a supercapacitor and a structural health monitoring sensor. It offers advantages of lightweightness, high energy storage, self-sensing, and easy engineering design, making it applicable in various fields such as automobiles, aerospace, civil infrastructure, and industrial plants.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
N. Forintos, T. Sarkadi, T. Czigany
Summary: Electric measurements of carbon fiber-reinforced composites can be used to detect and measure overload conditions, with the resistance of the carbon fiber increasing until it breaks; cyclic testing shows that overload exceeding reversible deformation can be detected by examining the first derivative of the resistance change.
COMPOSITES COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Shu Minakuchi, Shoma Niwa, Nobuo Takeda
Summary: This study proposes a strip-type embeddable shape sensor based on fiber optics for in situ monitoring of consolidation deformation in carbon fiber-reinforced plastic composite structures. The sensor's performance is evaluated using finite element analysis and experiments, and relaxation of consolidation deformation due to fiber-resin suspension flow is measured for the first time.
Review
Chemistry, Analytical
Pedro M. Ferreira, Miguel A. Machado, Marta S. Carvalho, Catarina Vidal
Summary: This paper provides a critical review of sensing technologies for Structural Health-Monitoring (SHM) systems. It focuses on the development of sensors, sensory systems, and smart materials, particularly the use of Embedded Sensors (ESs) for continuous and permanent measurement of structural integrity. The paper emphasizes the importance of smart sensor selection and underlying technology, and analyzes the challenges in their implementation.
Article
Engineering, Environmental
Yang Chen, Chudong Tong, Ting Lan
Summary: The NEDA algorithm aims to discover inconsistencies in monitored samples by providing different latent feature generating mechanisms, with the goal of maximizing the NEE for the monitored sample and minimizing the NEE for normal samples. The corresponding NEE is used as an indicator for fault monitoring purposes. This algorithm demonstrates significant performance in monitoring both static and dynamic processes.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Physical
Fangqing Ge, Weidong Yu, Yunjie Yin, Chaoxia Wang
Summary: A solar-driven thermochromic fabric has been successfully developed with the function of light intensity monitoring. It demonstrates stable photothermal conversion and high-contrast reversible color change performance under sunlight irradiation. The fabric allows timely monitoring of sunlight irradiation intensity for human body protection and health management.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Engineering, Manufacturing
Yongzhen Wang, Xiang Yu, Rulin Liu, Chao Zhi, Yaming Liu, Weiqiang Fan, Jiaguang Meng
Summary: Thermal-moisture comfort is a basic and essential need for the human body. Shape memory active fabrics can effectively regulate skin microenvironment and show great potential in intelligent thermal-moisture management by flexibly responding to environmental stimuli.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Chemistry, Multidisciplinary
Weiqiang Zhao, Fei Shao, Fuqin Sun, Zihao Su, Shiyong Liu, Ting Zhang, Meifang Zhu, Zunfeng Liu, Xiang Zhou
Summary: Neurons have excellent signal transmission capacity, inspiring the development of artificial neuron materials for wearable electronics and soft robotics. Sticky artificial spider silk made of a proton donor-acceptor hydrogel fiber is developed, which exhibits excellent mechanical properties, stickiness, and ion conductivity. The high spinning capacity of the hydrogel allows for a wide range of donor-acceptor combinations. This PrDA artificial spider silk has the potential to revolutionize the design of artificial neuron materials, bio-electrodes, and artificial synapses.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Composites
In Yong Lee, Hyung Doh Roh, Young-Bin Park
Summary: The study introduces a new non-destructive self-sensing impact localization technique for CFRPs by optimizing electrode arrays. The proposed probabilistic sensing cloud method aids in locating damaged areas, with experimental results confirming its effectiveness. In comparison to traditional methods, this technique requires no additional sensors and has lower noise and error components.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Review
Materials Science, Multidisciplinary
Zhe Yin, Haojie Lu, Linli Gan, Yingying Zhang
Summary: The development of smart wearables has increased the requirements for comfort, multifunctionality, and aesthetic value of wearable electronics. Traditional wearable electronics lack flexibility, softness, and breathability, making them unsuitable for long-term use. Recently, electronic fibers/textiles with similar morphology to traditional fibers/textiles and electronic functions have attracted attention. This review summarizes the latest advances in the fabrication and applications of electronic fibers/textiles for health-monitoring devices. It covers the fabrication methods, applications in health monitoring, display textiles, and integrated multifunctional textiles, and discusses the challenges and prospects of electronic fibers/textiles in health management, medical care, and human-machine interfaces.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Mechanical
S. Mekid, A. Bouhraoua, U. Baroudi
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2019)
Article
Engineering, Mechanical
I Gilavdary, S. Mekid, N. Riznoukaya
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2020)
Article
Chemistry, Physical
Samir Mekid, Hammam Daraghma, Salem Bashmal
Article
Engineering, Multidisciplinary
Mahmoud Meribout, Samir Mekid, Nabil Kharoua, Lyes Khezzar
Summary: This critical review explores the main sensing techniques used for online monitoring of the integrity of alloy steel equipment in the process industry. Despite ongoing research to improve sensitivity and accuracy, challenges such as lack of sensitivity, accuracy, universality, and cost effectiveness persist. Further development efforts are necessary to address these issues.
Article
Thermodynamics
N. Saheb, S. Lamara, F. Sahnoune, S. F. Hassan
Summary: This work investigates the formation kinetics of magnesium aluminate spinel from alpha-Al2O3 and MgO nanopowders, using thermodilatometric analysis and X-ray diffraction. The results show that the use of nano-oxide powders reduces the formation temperature and activation energy of spinel.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Review
Chemistry, Analytical
Mohamad-Ammar Sayegh, Hammam Daraghma, Samir Mekid, Salem Bashmal
Summary: This paper introduces a class of tactile sensors known as Whisker sensors and discusses their designs, materials, and manufacturing techniques. The article provides detailed information about the technical specifications and performance of these sensors, as well as their potential in various applications. Additionally, it explores the micro and nanoscale fabrication of Whiskers and their contributions to mechanical and thermal behavior. Lastly, the paper highlights research gaps in the field and potential applications of these sensors.
Article
Social Issues
Hisham O. Khogali, Samir Mekid
Summary: The potential impacts of machine learning and artificial intelligence (AI) on society are receiving increased attention. The development of AI technology has created new markets and employment opportunities in vital industries. This study presents a review of how automation and AI may affect businesses and jobs, and investigates the prospective long-term consequences of AI on human civilization.
TECHNOLOGY IN SOCIETY
(2023)
Article
Engineering, Mechanical
Igor. Gilavdary, Samir Mekid, Natalia. Riznookaya
Summary: This study investigates the laws of rolling resistance between contacting bodies by setting up a single-point contact system as a pendulum. The results show a significant reduction in rolling resistance compared to the elastic contact spot size. The designed device utilizes a physical pendulum supported by only one ball on a flat polished surface, and solves the stability problem of the pendulum swing plane. A phenomenological theory is described to explain rolling resistance, and the parameters of surface tension, frequency-independent internal friction, and pressure of adhesion forces are determined.
Article
Multidisciplinary Sciences
Usman A. Akbar, Samir Mekid, Omar Alsawafy, Ahmad Al Hanbali
Summary: Global competitiveness presents challenges for manufacturing companies to meet dynamic customer demands and maintain market share. Distributed manufacturing is adopted to increase facility utilization by decentralizing production, allowing customers to choose the best manufacturers based on their track record. Industry 4.0 and IIoT enable online monitoring of production key parameters for manufacturers in a DM network.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Education, Scientific Disciplines
Samir Mekid
Summary: Introducing a Nanotechnology course with extensive lab experiments is essential for engineering students during their undergraduate studies. Two new instruments designed to support micro/nano-technology education have been created, offering students more capabilities for hands-on experience.
INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING EDUCATION
(2021)
Article
Multidisciplinary Sciences
Abba A. Abubakar, Samir Mekid, Hammam Daraghma, Nouari Saheb
Summary: This paper discusses the embedding conditions of fiber-optic sensors in powder-based materials using two different techniques, aiming to build haptic sensorial materials for robotics applications. The results show promising possibilities for sensors to be embedded and located anywhere inside the material, with good agreement between numerical modeling and experimental analysis, supporting the preparation of experiments and manufacturing processes with parts having complex geometries.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Samir Mekid, Hammam Daraghma
PROCEEDINGS OF THE 2020 17TH INTERNATIONAL MULTI-CONFERENCE ON SYSTEMS, SIGNALS & DEVICES (SSD 2020)
(2020)
Article
Materials Science, Multidisciplinary
Zh Al-Ashwan, U. Hayat, I. H. Toor, Syed Fida Hassan, N. Saheb
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2020)
Article
Engineering, Multidisciplinary
Samir Mekid, Salem Bashmal
JOURNAL OF ENGINEERING DESIGN AND TECHNOLOGY
(2019)
Article
Computer Science, Information Systems
Samir Mekid
