New concept for modeling the electromechanical behavior of unidirectional carbon-fiber-reinforced plastic under tensile loading

In this paper, the electromechanical behavior of carbon-fiber-reinforced plastic (CFRP) composites under tensile loading is investigated experimentally and analytically. We review the measurement method of the electrical resistance change in CFRP and discuss the effect of the electrode configuration on the measured values. For this purpose, the measurement results of the different electrode configurations, DC two-and four-probe methods, are compared and the internal voltage distribution is investigated. Using the selected test procedure, the electrical resistance change curve of the specimen with different fiber volume fractions is obtained and the electrical ineffective length, which was previously proposed as a new concept for the electromechanical modeling of CFRP, is reviewed. Then, a Monte Carlo simulation, which combines the fiber fragmentation process and the concept of the electrical ineffective length, is conducted and compared with the experimental and the analytical results. The new concept and methodology for the modeling of the electromechanical behavior of CFRP composites is established concretely.

[1]  Ries,et al.  New aspects of the mixed state from six-terminal measurements on Bi2Sr2CaCu2Ox single crystals. , 1992, Physical review letters.

[2]  E. Baggio-Saitovitch,et al.  Influence of the anisotropy in the c-axis resistivity measurements of high-Tc superconductors , 1999 .

[3]  B. Logan,et al.  Series for Computing Current Flow in a Rectangular Block , 1971 .

[4]  Hiroaki Yanagida,et al.  Preventing Fatal Fractures in Carbon‐Fiber–Glass‐Fiber‐Reinforced Plastic Composites by Monitoring Change in Electrical Resistance , 1993 .

[5]  H. C. Montgomery.  Method for Measuring Electrical Resistivity of Anisotropic Materials , 1971 .

[6]  Karl Schulte,et al.  Load and failure analyses of CFRP laminates by means of electrical resistivity measurements , 1989 .

[7]  D.D.L. Chung,et al.  Structural health monitoring by electrical resistance measurement , 2001 .

[8]  W. Weibull.  A Statistical Distribution Function of Wide Applicability , 1951 .

[9]  J. Wolfenstine,et al.  Creep Behavior of Potassium Chloride–Rubidium Chloride Solid Solution Alloys , 1993 .

[10]  D.D.L. Chung,et al.  Piezoresistivity in continuous carbon fiber polymer‐matrix composite , 2000 .

[11]  Nobuo Takeda,et al.  Estimation of strength distribution for a fiber embedded in a single-fiber composite: experiments and statistical simulation based on the elasto-plastic shear-lag approach , 2001 .

[12]  R. Prabhakaran,et al.  Damage assessment through electrical resistance measurement in graphite fiber-reinforced composites , 1990 .

[13]  M. Gurvich,et al.  Statistical simulation of fiber fragmentation in a single-fiber composite , 1997 .

[14]  A. Kelly,et al.  Tensile properties of fibre-reinforced metals: Copper/tungsten and copper/molybdenum , 1965 .

[15]  Nobuo Takeda,et al.  Electromechanical modeling of unidirectional CFRP composites under tensile loading condition , 2002 .

[16]  A. Chateauminois,et al.  In situ detection of damage in CFRP laminates by electrical resistance measurements , 1999 .