Piezoresistive type graphene nano platelet sensor for SHM application in structural components
27 Mar 2019-Vol. 10970
TL;DR: In this paper, the GNP (graphene nano platelet) sensor has been used for SHM monitoring in structural components and employed various non-destructive methods such as SEM spectroscopy, Raman spectroscope to find out sensor's characterization in straining action associated with structural components with the help of GNP sensor.
Abstract: With the advancement of science and technology, SHM application through smart materials from graphene are becoming more popular than ever before. The physics behind graphene sensor has become an area of suitable interest owing to its Non-destructive application in structural components. Smart material sensors being allotrope form of carbon has been basically used for piezoresistive application purposes in composites, environmental monitoring and also in health applications. Here Gnp (graphene nano platelet) sensor has been used for SHM monitoring in structural components. We employed various Non-destructive methods such as SEM spectroscopy, Raman spectroscopy to find out sensor’s characterization in straining action associated with structural components with the help of GNP sensor.
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TL;DR: Results demonstrate that the novel theoretical model is able to accurately reproduce the bricks’ response when subjected to compressive loads and is also effective for strain estimation and damage detection in a typical structural setting.
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TL;DR: In this article, a flexible force sensor consisting of 3D graphene foam (GF) encapsulated in flexible polydimethylsiloxane (PDMS) was developed. And the 3D GF/PDMS sensor is based on the transformation of an electronic band structure aroused by static mechanical strain or KHz vibration, it can detect frequency signals by both tuning fork tests and piezoelectric ceramic transducers.
Abstract: We developed a flexible force sensor consisting of 3D graphene foam (GF) encapsulated in flexible polydimethylsiloxane (PDMS). Because the 3D GF/PDMS sensor is based on the transformation of an electronic band structure aroused by static mechanical strain or KHz vibration, it can detect frequency signals by both tuning fork tests and piezoelectric ceramic transducer tests, which showed a clear linear response from audio frequencies, including frequencies up to 141 KHz in the ultrasound range. Because of their excellent response with a wide bandwidth, the 3D GF/PDMS sensors are attractive for interactive wearable devices or artificial prosthetics capable of perceiving seismic waves, ultrasonic waves, shock waves, and transient pressures.
17 citations
"Piezoresistive type graphene nano p..." refers background in this paper
...al (2017) (2), flexible and wearable 3D graphene sensor with 141KHz frequency signal response capability was developed....
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