Effects of Strain and Damage on Strain-Sensing Ability of Carbon Fiber Cement
Publication: Journal of Materials in Civil Engineering
Volume 18, Issue 3
Abstract
The strain-sensing ability of carbon fiber cement, as based on piezoresistivity, remains in the presence of damage, although the gauge factor (fractional change in resistance per unit strain) is affected by strain and damage. The longitudinal gauge factor is diminished by compressive strain by up to 70% and by damage by up to 25%. The magnitude of the transverse gauge factor is diminished by strain by up to 60% and by up to 25% by minor damage not accompanied by irreversible strain, but it is increased by up to 120% by major damage accompanied by irreversible strain. The gauge factor, whether longitudinal or transverse, is reduced in magnitude as the specimen size increases (by ).
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Acknowledgment
This work was supported in part by the National Science Foundation.
References
Bontea, D.-M., Chung, D. D. L., and Lee, G. C. (2000). “Damage in carbon fiber reinforced concrete, monitored by electrical resistance measurement.” Cem. Concr. Res., 30(4), 651–659.
Chen, P.-W., and Chung, D. D. L. (1993). “Carbon fiber reinforced concrete as a smart material capable of nondestructive flaw detection.” Smart Mater. Struct., 2(1), 22–30.
Chen, P.-W., and Chung, D. D. L. (1996). “Concrete as a new strain/stress sensor.” Composites, Part B, 27B, 11–23.
Chung, D. D. L. (1995). “Strain sensors based on the electrical resistance change accompanying the reversible pull-out of conducting short fibers in a less conducting matrix.” Smart Mater. Struct., 4(1), 59–61.
Chung, D. D. L. (2003). “Damage in cement-based materials, studied by electrical resistance measurement.” Mater. Sci. Eng., R., 42(1), 1–40.
Chung, D. D. L. (2002a). “Electrical conduction behavior of cement-matrix composites.” J. Mater. Eng. Perform., 11(2), 194–204.
Chung, D. D. L. (2002b). “Piezoresistive cement-based materials for strain sensing.” J. Intell. Mater. Syst. Struct., 13(9), 599–609.
Fu, X., and Chung, D. D. L. (1996). “Self-monitoring of fatigue damage in carbon fiber reinforced cement.” Cem. Concr. Res., 26(1), 15–20.
Fu, X., and Chung, D. D. L. (1997). “Effect of curing age on the self-monitoring behavior of carbon fiber reinforced mortar.” Cem. Concr. Res., 27(9), 1313–1318.
Fu, X., Lu, W., and Chung, D. D. L. (1998). “Ozone treatment of carbon fiber for reinforcing cement.” Carbon, 36(9), 1337–1345.
Mao, Q., Zhao, B., Sheng, D., and Li, Z. (1996). “Resistance changement of compression sensible cement specimen under different stresses.” J Wuhan Univ. Tech., 11(3), 41–45.
Reza, F., Batson, G. B., Yamamuro, J. A., and Lee, J. S. (2003). “Resistance changes during compression of carbon fiber cement composites.” J. Mater. Civ. Eng., 15(5), 476–483.
Sun, M., Mao, Q., and Li, Z. (1998). “Size effect and loading rate dependence of the pressure-sensitivity of carbon fiber-reinforced concrete (CFRC).” J. Wuhan Univ. Tech., 13(3), 58–61.
Wen, S., and Chung, D. D. L. (2000). “Uniaxial tension in carbon fiber reinforced cement, sensed by electrical resistivity measurement in longitudinal and transverse directions.” Cem. Concr. Res., 30(8), 1289–1294.
Wen, S., and Chung, D. D. L. (2001a). “Carbon fiber-reinforced cement as a strain-sensing coating.” Cem. Concr. Res., 31(4), 665–667.
Wen, S., and Chung, D. D. L. (2001b). “Uniaxial compression in carbon fiber reinforced cement, sensed by electrical resistivity measurement in longitudinal and transverse directions.” Cem. Concr. Res., 31(2), 297–301.
Wen, S., and Chung, D. D. L. (2003). “A comparative study of steel- and carbon-fibre cement as piezoresistive strain sensors.” Adv. Cem. Res., 15(3), 119–128.
Wen, S., and Chung, D. D. L. (2005). “Strain sensing characteristics of carbon fiber cement.” ACI Mater. J., 102(4), 244–248.
Wen, S., and Chung, D. D. L. (2006). “Damage sensing characteristics of carbon fiber cement.” Cem. Concr. Res., in press.
Yao, W., Chen, B., and Wu, K. (2003). “Smart behavior of carbon fiber- reinforced cement-based composite.” J. Mater. Sci. Tech., 19(3), 239–242.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 18 • Issue 3 • June 2006
Pages: 355 - 360
Copyright
© 2006 ASCE.
History
Received: Jul 12, 2004
Accepted: Nov 30, 2004
Published online: Jun 1, 2006
Published in print: Jun 2006
Notes
Note. Associate Editor: Kolluru V. Subramaniam
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