Capacitance-based self-sensing of flaws and stress in carbon-carbon composites, with reports of the electric permittivity, piezoelectricity and piezoresistivity

@article{Xi2019CapacitancebasedSO,
  title={Capacitance-based self-sensing of flaws and stress in carbon-carbon composites, with reports of the electric permittivity, piezoelectricity and piezoresistivity},
  author={Xiang Xi and D. D. L. Chung},
  journal={Carbon},
  year={2019}
}

Electret, piezoelectret and piezoresistivity discovered in steels, with application to structural self-sensing and structural self-powering

Electret, piezoelectret, piezoresistivity and stress-dependent electric permittivity are reported in unmodified steels. Structural stress/strain self-sensing based on piezoelectret/piezoresistivity

A Comparative Study of the Electrical and Electromechanical Responses of Carbon Nanotube/Polypropylene Composites in Alternating and Direct Current

TLDR
The piezoimpedance characterization in the resistive configuration yielded an increasing impedance modulus (|Z|) and an increasing (negative) value of θ as the strain increased, and the dielectric configuration enhanced the permittivity contribution to impedance, but it was the least sensitive to strain.

Unprecedented Capacitance-Based Nondestructive Evaluation of Steels

  • K. ShiD. Chung
  • Materials Science
    Journal of Materials Engineering and Performance
  • 2019
This work reports for the first time capacitance-based nondestructive evaluation (NDE) of a monolithic metal, namely steel. This means that the structural material is self-sensing, without the need

A critical review of piezoresistivity and its application in electrical-resistance-based strain sensing

  • D. Chung
  • Geology
    Journal of Materials Science
  • 2020
Piezoresistivity is an electromechanical effect characterized by the reversible change in the electrical resistivity with strain. It is useful for electrical-resistance-based strain/stress sensing.

Tunable force sensor based on carbon nanotube fiber for fine mechanical and acoustic technologies

Design of new smart prosthetics or robotic grippers gives a major impetus to low-cost manufacturing and rapid prototyping of force sensing devices. In this paper, we examine piezoresistive force

References

SHOWING 1-10 OF 41 REFERENCES

Electric permittivity of carbon fiber

Sensing the stress in steel by capacitance measurement

DAMAGE ONSET AND GROWTH IN CARBON-CARBON COMPOSITE MONITORED BY ACOUSTIC EMISSION TECHNIQUE

Carbon-carbon (C/C) composites with different densities (1.8, 1.35, 0.8 g/cm), produced by chemical vapor infiltration (CVI) were tested mechanically under quasi-static loading in bending mode of

Airborne ultrasonic inspection in carbon/carbon composite materials

  • I. YangYoung-Hun Kim K. Im
  • Materials Science
    International Conference on Smart Materials and Nanotechnology in Engineering
  • 2007
In this work, a carbon/carbon (C/C) composite material was nondestructively characterized with non-contact ultrasonic methods using automated acquisition scanner as well as contact ultrasonic