Self-sensing and dispersive evaluation of single carbon fiber/carbon nanotube (CNT)-epoxy composites using electro-micromechanical technique and nondestructive acoustic emission

Piezoresistive in-situ strain sensing of composite laminate structures

“…The issue of routing circuitry to the point of interest must also be considered for this approach. Carbon nanotubes [14,15], carbon black [16], and nickel nanostrands [17]. This paper will focus on nickel nanostrand composites due to their extremely large piezoresistive effect.…”

In-situ damage sensing of woven composites using carbon nanotube conductive networks

“…Each of these methods has its own advantages, but some limitations, such as low signal-to-noise ratio, high computational cost, indirect approach, and limited range, have been reported [14,15]. To overcome these limitations, in situ monitoring exploiting the piezoresistive behavior of conductive networks of carbon nanotubes (CNTs) has been reported [15][16][17]. When a CNT network in the matrix or in the yarns breaks due to microscopic damage, the electrical conductivity of the composite changes.…”

The performance of stress-sensing smart fiber reinforced composites in moist and sodium chloride environments

“…While chemical admixtures and fibers are often added to concrete to improve mechanical performance and durability, the use of carbon nano-fibers can add additional innovative capabilities for non-destructive monitoring of stresses, moisture conditions, chloride profiles, and crack propagation in self-sensing concrete structures [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Self-sensing smart concrete, an important component of smart buildings and infrastructure, can detect potential failures before reaching the critical deterioration threshold.…”