Modeling of damage sensing in fiber composites using carbon nanotube networks

Abstract This paper presents the modeling of damage sensing in [0°/90°] s cross-ply glass fiber composites using embedded carbon nanotube network. The wavy nanotubes are distributed in the polymer matrix between fibers and their contact resistances are modeled considering the electrical tunneling effect. The effective electrical resistance of the percolating nanotube network is calculated by considering nanotube matrix resistors and employing the finite element method for electrical circuits. The entire deformation process of the composite, from initial loading to final failure, is simulated by using the finite element method for two-dimensional stress analyses. The deformation and damage induced resistance change is identified in each loading step. The results demonstrate that the current simulation model captures the essential parameters affecting the electrical resistance of nanotube networks, which can serve as an efficient tool for structural health monitoring of fiber composites.

[1]  Chunyu Li,et al.  A direct electrifying algorithm for backbone identification , 2007 .

[2]  Tsu-Wei Chou,et al.  Nanocomposites in context , 2005 .

[3]  Saeed Moaveni,et al.  Finite Element Analysis Theory and Application with ANSYS , 2007 .

[4]  J. Z. Zhu,et al.  The finite element method , 1977 .

[5]  Chen Wei,et al.  Multifunctional chemical vapor sensors of aligned carbon nanotube and polymer composites. , 2006, Journal of the American Chemical Society.

[6]  Shiv P. Joshi,et al.  Damage detection in CFRP by electrical conductivity mapping , 2001 .

[7]  Akira Todoroki,et al.  Delamination identification of cross-ply graphite/epoxy composite beams using electric resistance change method , 2002 .

[8]  William A. Curtin,et al.  Modeling of mechanical damage detection in CFRPs via electrical resistance , 2007 .

[9]  Mark J. Schulz,et al.  Structural Health Monitoring Based on Electrical Impedance of a Carbon Nanotube Neuron , 2006 .

[10]  Chunyu Li,et al.  Sensors and actuators based on carbon nanotubes and their composites: A review , 2008 .

[11]  Hargsoon Yoon,et al.  Passive wireless sensors using electrical transition of carbon nanotube junctions in polymer matrix , 2006 .

[12]  H. Lezec,et al.  Electrical conductivity of individual carbon nanotubes , 1996, Nature.

[13]  William A. Curtin,et al.  Stochastic Damage Evolution and Failure in Fiber-Reinforced Composites , 1998 .

[14]  Chunyu Li,et al.  Continuum percolation of nanocomposites with fillers of arbitrary shapes , 2007 .

[15]  H. Wagner,et al.  Direction-sensitive strain-mapping with carbon nanotube sensors , 2002 .

[16]  T. Chou,et al.  Advances in the science and technology of carbon nanotubes and their composites: a review , 2001 .

[17]  T. Chou,et al.  Carbon Nanotube Networks: Sensing of Distributed Strain and Damage for Life Prediction and Self Healing , 2006 .

[18]  P. McEuen,et al.  Thermal transport measurements of individual multiwalled nanotubes. , 2001, Physical Review Letters.

[19]  H. Daniel Wagner,et al.  Stress fields around defects and fibers in a polymer using carbon nanotubes as sensors , 2001 .

[20]  K. Schulte.  Sensing with carbon fibres in polymer composites , 2002 .

[21]  Mark J. Schulz,et al.  A carbon nanotube strain sensor for structural health monitoring , 2006 .

[22]  A. D. Prins,et al.  Carbon nanotubes : from molecular to macroscopic sensors , 2000 .

[23]  Satish Nagarajaiah,et al.  Nanotube film based on single-wall carbon nanotubes for strain sensing , 2004 .

[24]  Karl Schulte,et al.  Non-destructive testing of FRP by d.c. and a.c. electrical methods , 2001 .

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

[26]  W Zhang,et al.  Carbon nanotube/polycarbonate composites as multifunctional strain sensors. , 2006, Journal of nanoscience and nanotechnology.

[27]  Chunyu Li,et al.  Atomistic Modeling of Carbon Nanotube-based Mechanical Sensors , 2006 .

[28]  Bin Zhang,et al.  Preparation and characterization of gas-sensitive composites from multi-walled carbon nanotubes/polystyrene , 2005 .

[29]  Sung-Ju Kim,et al.  Inherent sensing and interfacial evaluation of carbon nanofiber and nanotube/epoxy composites using electrical resistance measurement and micromechanical technique , 2007 .

[30]  Chunyu Li,et al.  Effect of nanotube waviness on the electrical conductivity of carbon nanotube-based composites , 2008 .

[31]  K. Schulte,et al.  Can carbon nanotubes be used to sense damage in composites , 2004 .

[32]  Chunyu Li,et al.  Dominant role of tunneling resistance in the electrical conductivity of carbon nanotube-based composites , 2007 .