416 チラノ繊維を用いた損傷検出スマート複合材料

概要

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Electrical resistance of fiber reinforced plastics (FRP) containing conductive fiber increases by the sequential fracture of the fiber with increasing the applied stress and/or strain. Using this phenomenon, damage detecting function, which is smart, has been developed for structural materials. However, apparent change in resistance is not seen until high strain range for conventional materials, since the conductivity is maintained by contacts of neighboring fibers. This study aims to develop much more sensitive material for detecting damage by change in electric resistance with strain in terms of giving the fibers electrically isolated condition. The relationships between strain and fracture probability of fibers under tensile loading conditions were also investigated.
社団法人日本機械学会の論文
2002-10-10