Structural Health Monitoring of Nonwoven Materials via Network of Carbon Nanotubes
Keywords:
Non-woven, Carbon Nano tubes, Multi-walled Carbon Nanotubes, Structural heath monitoring, non-woven materialsAbstract
Continuous health monitoring of structures is crucial in order to ensure the safety of the people living in and around the structures made up of nonwoven materials. Carbon Nanotubes (CNTs) used as sensor show a promising way of detecting these damages and relaying the signals in order to prevent any major accidents. In this study, MWCNT – multi walled carbon nanotube have been used to decorate glass fiber nonwoven material by using vacuum filtration method. Experiments have been done on CNTs decorated nonwoven of different dimensions, i.e. virgin, horizontal pre-damaged, diagonal and vertical pre-damaged specimens. The electrical resistance of CNT decorated nonwoven material has been measured by increasing the tensile force simultaneously followed by evaluating the damage fruition and electric failure mechanisms in the glass fiber nonwoven material. The experimental results show that MWCNT loading as small as~0.75% was enough to detect the damage in the nonwoven material. This process can be scaled up and used extensively for structural health monitoring of nonwoven materials.
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