Title:Carbon and Metallic-based Nanomaterials for Strain Sensors - A Review
Volume: 6
Issue: 3
Author(s): Pravan Omprakash, Udaya B. Kuruveri and Devadas B. Panemangalore*
Affiliation:
- Department of Metallurgical and Materials Engineering, National Institute of Technology, Karnataka, Surathkal, Post Srinivasnagar 575025,India
Keywords:
Nanomaterial, graphene, CNT, strain sensor, sensor, nanoparticle.
Abstract: Strain gauges are devices whose electrical resistances vary proportionately with the
amount of strain applied on the device. They can be used for real-time applications in the aerospace
sector, as a geotechnical tool in tunnels and bridges, in rail monitoring and health monitoring
sectors. Nanomaterials have been widely used for this application because they can be flexible,
stretchable and have high strength. Several researchers have used numerous carbon-based and metallic
nanostructures to develop functionally graded materials. Among carbon-based materials,
graphene has been widely researched as a viable material for strain sensors due to its superior mechanical
and electrical properties. Also, many metallic nanoparticles have been investigated to design
strain sensors that are highly sensitive to a wide range of strains. In this article, a review of carbon
and metallic nanomaterial-based strain sensors is presented, with emphasis on applications pertaining
to structural health monitoring and wearable devices.
