Electrical Response of Carbon Nanotube Reinforced Nanocomposites Under Static and Dynamic Loading

Heeder, N.; Shukla, Arun; Chalivendra, Vijaya; Yang, Sze C.; Park, K.

doi:10.1007/s11340-011-9488-x

Cited by 49 publications

(24 citation statements)

References 21 publications

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“…Researches demonstrated that proper addition of nano carbon materials (NCMs) can endure cement-based composites with not only great mechanical properties and anti-crack abilities, but also durability and functional properties [11][12][13]. Furthermore, the NCMs reinforced cement-based composites themselves will have sensing properties, thus achieving smart monitoring.…”

Section: Introductionmentioning

confidence: 99%

Electrostatic self-assembled carbon nanotube/nano carbon black composite fillers reinforced cement-based materials with multifunctionality

Han

Zhang

Sun

et al. 2015

Composites Part A: Applied Science and Manufacturing

173

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Section: Introductionmentioning

confidence: 99%

Electrostatic self-assembled carbon nanotube/nano carbon black composite fillers reinforced cement-based materials with multifunctionality

Han

Zhang

Sun

et al. 2015

Composites Part A: Applied Science and Manufacturing

173

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“…In order to effectively capture the change in electrical resistance of the cylindrical specimen, a novel approach previously developed by the authors utilizing the fourpoint probe method was implemented [31]. The four probes consisted of the left face, right face, and the two inner channels.…”

Section: Electrical Characterizationmentioning

confidence: 99%

“…Therefore, the initial resistance of each specimen served as the baseline for each experiment. Based on previous studies [31], this method better provides the means to detect changes in the resistance caused by strain and damage mechanisms in the material as compared to the classical four-point probe method. Since the current flows through the cross sectional area, the measured resistance is an estimation of the bulk resistance of the inner section.…”

Section: Electrical Characterizationmentioning

confidence: 99%

“…A modified four-point probe method was utilized to measure the resistance change during the compression tests [31]. The experimental setup used to capture the resistance change of the composites under quasi-static loading is shown in Fig.…”

Section: Quasi-static Electro-mechanical Characterizationmentioning

confidence: 99%

“…The combination of the remarkable mechanical properties and the exceptional electrical properties makes graphene an ideal candidate for use as a filler material in fabricating multi-functional composites capable of sensing material behavior. Many reports demonstrate the effectiveness of utilizing CNT reinforced polymer composites as strain and damage sensors [30][31][32][33]. More recently, similar studies have been conducted where graphene is utilized to provide strain sensing functions [34][35][36].…”

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Electro-mechanical Behavior of Graphene–Polystyrene Composites Under Dynamic Loading

Heeder

Chakraborty

Bose

et al. 2015

J. dynamic behavior mater.

Self Cite

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An experimental investigation was conducted to understand the electro-mechanical response of graphene reinforced polystyrene (PS) composites under static and dynamic loading. Graphene/PS composites were fabricated using a solution mixing approach followed by hot-pressing. Absolute resistance values were measured with a highresolution four-point probe method for both quasi-static and dynamic loading. A modified split Hopkinson (Kolsky) pressure bar apparatus, capable of simultaneous mechanical and electrical characterization, was developed and implemented to investigate the dynamic electro-mechanical response of the composites. In addition to measuring the change in electrical resistance as well as the dynamic constitutive behavior, real-time surface damage and global deformation was captured using high-speed photography. The real-time damage was correlated to both stress-strain and percent change in resistance profiles. The experimental findings indicate that the bulk resistance of the composite increased significantly due to the brittle nature of the PS matrix and the presence of relative agglomerations of graphene platelets which resulted in microcrack formations. Scanning electron microscopy imaging gives further insight into the various damage mechanisms that occur within the composites subjected to a static or dynamic load. The results show that the change in transport properties can provide further insight into the microstructural evolution of composite materials during loading.

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Piezoresistivity, Strain, and Damage Self‐Sensing of Polymer Composites Filled with Carbon Nanostructures

2018

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Previous and current research on piezoresistivity of polymer composites filled with carbon nanostructures is reviewed. The review covers the use of the coupled electro‐mechanical response of these materials to self‐sense their strain and damage during mechanical loading. The mechanisms yielding changes in electrical resistance upon mechanical loading in polymer composites filled with carbon nanostructures are first discussed. Published knowledge is then summarized, starting with framework literature on carbon black and graphite and then moving to more recent research on carbon nanotubes, exfoliated graphite, and few‐layer graphene sheets. Piezoresistive studies of polymer nanocomposites with aligned carbon fillers are also reviewed. It is aimed that this review contributes in collecting, organizing, and summarizing the knowledge, foundations, and state of the art on the piezoresistive response of polymer composites filled with different carbon allotropes, providing new perspectives and advancing towards the fast development of smart self‐sensing carbon filled nanocomposites.

show abstract

Electrical Response of Carbon Nanotube Reinforced Nanocomposites Under Static and Dynamic Loading

Cited by 49 publications

References 21 publications

Electrostatic self-assembled carbon nanotube/nano carbon black composite fillers reinforced cement-based materials with multifunctionality

Electrostatic self-assembled carbon nanotube/nano carbon black composite fillers reinforced cement-based materials with multifunctionality

Electro-mechanical Behavior of Graphene–Polystyrene Composites Under Dynamic Loading

Piezoresistivity, Strain, and Damage Self‐Sensing of Polymer Composites Filled with Carbon Nanostructures

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