Foreseeing of Fracture in CFGFRP Composites by the Measurement of Residual Change in Electrical Resistance

Muto, Norio; Yanagida, Hiroaki; Miyayama, Masaru; Nakatsuji, Teruyuki; Sugita, Minoru; Ohtsuka, Yasushi

doi:10.2109/jcersj.100.585

Cited by 46 publications

(9 citation statements)

References 2 publications

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“…The simultaneous monitoring of damage (irreversible, whether due to stress or temperature, under static or dynamic conditions) and strain (reversible, due to stress under a dynamic condition) has been achieved in continuous carbon fiber polymer-matrix composites (both epoxy-matrix and thermoplastic-matrix composites), as the electrical resistance of the composite changes with damage and strain 7,12,[14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] . Upon applying a longitudinal tension, the longitudinal resistivity decreases quite reversibly (Figure 1), primarily due to a strain-induced increase in the degree of fiber alignment.…”

Section: Self-sensing Behavior Reviewmentioning

confidence: 99%

Self-sensing of Damage and Strain in Carbon Fiber Polymer-Matrix Structural Composites by Electrical Resistance Measurement

Chung

Wang

2003

Polymers and Polymer Composites

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Section: Self-sensing Behavior Reviewmentioning

confidence: 99%

Self-sensing of Damage and Strain in Carbon Fiber Polymer-Matrix Structural Composites by Electrical Resistance Measurement

Chung

Wang

2003

Polymers and Polymer Composites

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“…The simultaneous monitoring of damage (irreversible, whether due to stress or temperature, under static or dynamic conditions) and strain (reversible, due to stress under a dynamic condition) has been achieved in continuous carbon fiber polymer-matrix composites (both epoxy-matrix and thermoplastic-matrix composites), as the electrical resistance of the composite changes with damage and strain [7,12,[14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. Upon longitudinal tension, the longitudinal resistivity decreases quite reversibly (Fig.…”

Section: Volume Electrical Resistance Measurementmentioning

confidence: 99%

OS09W0052 Monitoring of damage and strain in carbon fiber polymer-matrix structural composites by electrical resistance methods

Chung

2003

ATEM

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Polymer-matrix composites containing continuous carbon fibers are the dominant lightweight structural materials. The monitoring of the damage is important for structural health monitoring and hazard mitigation. The monitoring of the strain is relevant to structural vibration control and security. This paper reviews the use of the composites themselves to sense their own damage and strain, thereby removing or reducing the need for embedded or attached sensors, which suffer from high cost and poor durability. Both damage and strain affect the volume electrical resistivity of a composite, thereby allowing the monitoring of damage and strain in real time by volume resistivity measurement. The contact resistivity of the interlaminar interface (i.e., the interface between the laminae) provides another attribute for monitoring. A configuration involving two crossply laminae provides a two-dimensional array of sensors and an x-y grid of electrical interconnections, thereby allowing spatial distribution sensing.

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“…Early work on damage detection in continuous fiber-reinforced polymer composites by electrical methods took advantage of the conductive nature of the reinforcement fibers (carbon) to detect fiber damage, primarily (Muto et al, 1992; Schulte and Baron, 1989; Van Schoor et al, 2005). This work included the influence of factors such as temperature, fiber volume fraction, and type of carbon fiber on the measured resistance along the direction of applied voltage.…”

Section: Introductionmentioning

confidence: 99%

Indentation damage detection in glass/epoxy composite laminates with electrically tailored conductive nanofiller

Güngör

Bakis

2015

Journal of Intelligent Material Systems and Structures

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Laminated fiber-reinforced polymer composites are known for excellent in-plane strength and stiffness per unit density, but variable susceptibility to out-of-plane impact and indentation loading on account of their relatively low interlaminar strength. Methods of monitoring damage caused by out-of-plane loads are therefore sought. This investigation aims to demonstrate the two-dimensional electrical resistance mapping method using co-cured carbon fiber electrodes, a glass fiber-reinforced composite system, and electrically tailored carbon black filler networks for sensing indentation damage. It is shown that damage sensing accuracy is improved by increasing the electrical conductivity of the carbon black network in the through-thickness direction. The anisotropic tailoring of conductivity is accomplished by using alternating-current dielectrophoresis, which entails the application of an electric field to polarize and chain the carbon black particles preferentially through the thickness during liquid processing of the composite. Co-cured carbon fiber tows arranged in a perpendicular array on the top and bottom surfaces of the laminate provide a qualitative assessment of the size and severity of the indentation damage via a two-dimensional resistance change map.

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Foreseeing of Fracture in CFGFRP Composites by the Measurement of Residual Change in Electrical Resistance

Cited by 46 publications

References 2 publications

Self-sensing of Damage and Strain in Carbon Fiber Polymer-Matrix Structural Composites by Electrical Resistance Measurement

Self-sensing of Damage and Strain in Carbon Fiber Polymer-Matrix Structural Composites by Electrical Resistance Measurement

OS09W0052 Monitoring of damage and strain in carbon fiber polymer-matrix structural composites by electrical resistance methods

Indentation damage detection in glass/epoxy composite laminates with electrically tailored conductive nanofiller

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