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Sensors 2011, 11(10), 9478-9498; doi:10.3390/s111009478
Article

Simultaneous Application of Fibrous Piezoresistive Sensors for Compression and Traction Detection in Glass Laminate Composites

1
, 2,*  and 3,4
Received: 18 August 2011; in revised form: 29 September 2011 / Accepted: 30 September 2011 / Published: 10 October 2011
(This article belongs to the Section Physical Sensors)
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Abstract: This article describes further development of a novel Non Destructive Evaluation (NDE) approach described in one of our previous papers. Here these sensors have been used for the first time as a Piecewise Continuous System (PCS), which means that they are not only capable of following the deformation pattern but can also detect distinctive fracture events. In order to characterize the simultaneous compression and traction response of these sensors, multilayer glass laminate composite samples were prepared for 3-point bending tests. The laminate sample consisted of five layers of plain woven glass fabrics placed one over another. The sensors were placed at two strategic locations during the lay-up process so as to follow traction and compression separately. The reinforcements were then impregnated in epoxy resin and later subjected to 3-point bending tests. An appropriate data treatment and recording device has also been developed and used for simultaneous data acquisition from the two sensors. The results obtained, under standard testing conditions have shown that our textile fibrous sensors can not only be used for simultaneous detection of compression and traction in composite parts for on-line structural health monitoring but their sensitivity and carefully chosen location inside the composite ensures that each fracture event is indicated in real time by the output signal of the sensor.
Keywords: intelligent sensors; intelligent structures; interconnected systems; monitoring; resistance measurement intelligent sensors; intelligent structures; interconnected systems; monitoring; resistance measurement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Nauman, S.; Cristian, I.; Koncar, V. Simultaneous Application of Fibrous Piezoresistive Sensors for Compression and Traction Detection in Glass Laminate Composites. Sensors 2011, 11, 9478-9498.

AMA Style

Nauman S, Cristian I, Koncar V. Simultaneous Application of Fibrous Piezoresistive Sensors for Compression and Traction Detection in Glass Laminate Composites. Sensors. 2011; 11(10):9478-9498.

Chicago/Turabian Style

Nauman, Saad; Cristian, Irina; Koncar, Vladan. 2011. "Simultaneous Application of Fibrous Piezoresistive Sensors for Compression and Traction Detection in Glass Laminate Composites." Sensors 11, no. 10: 9478-9498.



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