Environmental Engineering Reference
In-Depth Information
Fig. 11.7 A smart scour
sensing post incorporates bio-
inspired magnetostrictive
whisker sensors for
measuring fluid flow and
bridge scour. (Image courtesy
of Prof. R. Andrew Swartz,
Michigan Technological
University, USA)
embedded in structures like fiber-reinforced polymer (FRP) composites for
embedded strain monitoring and damage detection (Fig. 11.8 ) (Loyola et al. 2010 ).
It should also be mentioned that another method for achieving embedded sensing
was to modify the FRP composite's epoxy matrix, again, using conductive fillers
like carbon nanotubes. Strain sensing, as well as monitoring delamination and
micro-cracks, were validated by Thostenson and Chou ( 2006 ), Böger et al. ( 2008 ),
Fig. 11.8 Multiple carbon
nanotube-based sensing skins
are embedded underneath the
surface of a large GFRP panel
during the manufacturing
process for achieving in situ
damage detection and SHM
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