Development of Interdigitated-Type Planar Capacitive Flex-Sensor Array for the Detection of Damages in Civil Engineering Structures

2020 ◽  
Vol 18 (5) ◽  
pp. 389-394
Author(s):  
Meghayu Adhvaryu ◽  
Piyush N. Patel ◽  
Chetan D. Modhera
Keyword(s):  
Structural Health Monitoring ◽  
Moisture Content ◽  
Health Monitoring ◽  
Sensor Array ◽  
Civil Engineering ◽  
Structural Parameters ◽  
Cell Structure ◽  
Average Sensitivity ◽  
Engineering Structures ◽  
Unit Cell Structure

A modified Interdigitated Planar Electrode (IDE) design is presented and used in the development of flex-sensor for Structural Health Monitoring (SHM). The design of IDE consists of a U-shaped electrode with integrated interdigitated electrodes. The overall size of the unit-cell structure is 25 × 25 mm2. Different civil engineering blocks were tested using the proposed sensor and a comprehensive crack analysis is presented based on the crack parameters. The sensor offers a lowest average sensitivity of 0.863157 pF/mm. The proposed flex-sensor can also be potentially used for the detection and monitoring of other structural parameters like corrosion, moisture content etc.

scholarly journals Smart Sensing Technologies for Structural Health Monitoring of Civil Engineering Structures

2010 ◽  
Vol 2010 ◽  
pp. 1-13 ◽  
Author(s):  
M. Sun ◽  
W. J. Staszewski ◽  
R. N. Swamy
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Smart Materials ◽  
Civil Engineering ◽  
Piezoelectric Sensors ◽  
Sensors And Actuators ◽  
Engineering Structures ◽  
Structural Health ◽  
Civil Engineering Structures ◽  
Smart Sensing

Structural Health Monitoring (SHM) aims to develop automated systems for the continuous monitoring, inspection, and damage detection of structures with minimum labour involvement. The first step to set up a SHM system is to incorporate a level of structural sensing capability that is reliable and possesses long term stability. Smart sensing technologies including the applications of fibre optic sensors, piezoelectric sensors, magnetostrictive sensors and self-diagnosing fibre reinforced composites, possess very important capabilities of monitoring various physical or chemical parameters related to the health and therefore, durable service life of structures. In particular, piezoelectric sensors and magnetorestrictive sensors can serve as both sensors and actuators, which make SHM to be an active monitoring system. Thus, smart sensing technologies are now currently available, and can be utilized to the SHM of civil engineering structures. In this paper, the application of smart materials/sensors for the SHM of civil engineering structures is critically reviewed. The major focus is on the evaluations of laboratory and field studies of smart materials/sensors in civil engineering structures.

Restoration and structural health monitoring of Manitoba's Golden Boy

2003 ◽  
Vol 30 (6) ◽  
pp. 1123-1132 ◽  
Author(s):  
Aftab A Mufti
Keyword(s):  
Structural Health Monitoring ◽  
Knowledge Base ◽  
Health Monitoring ◽  
Civil Engineering ◽  
Paper Briefly ◽  
Engineering Applications ◽  
Engineering Structures ◽  
Structural Health ◽  
Existing Structures ◽  
History Of

Although bridges were among the first civil engineering structures to use structural health monitoring (SHM) technologies, research is now expanding to explore other types of applications, including Manitoba's famous Golden Boy statue. Global research is identifying the value of using SHM technologies for civil engineering applications. Structural health monitoring uses a variety of sensors to gather information about the behaviour of a structure. The information creates a valuable knowledge base that can be analyzed to help identify potential structural risks, develop safer and more efficient new structures, and determine more effective ways to rehabilitate existing structures. This paper briefly describes the history of the Manitoba Legislative Building and the Golden Boy and also the use of SHM technologies to help preserve the Golden Boy statue, an icon of provincial heritage.Key words: history, Golden Boy, statue, sculptors, architects, engineers, shaft, corrosion, sensors, monitoring.

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