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Piezoresistivity in continuous carbon fiber polymer‐matrix composite
Author(s) -
Wang Shoukai,
Chung D. D. L.
Publication year - 2000
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.10160
Subject(s) - materials science , composite material , composite number , fiber , epoxy , tension (geology) , electrical resistivity and conductivity , matrix (chemical analysis) , electrical resistance and conductance , volume (thermodynamics) , polymer , compression (physics) , physics , electrical engineering , quantum mechanics , engineering
Abstract Piezoresistivity involving the volume resistivity of a continuous unidirectional carbon fiber epoxy‐matrix composite in the fiber direction decreasing reversibly upon tension in the fiber direction was observed by the four‐probe method, due to an increase in the degree of fiber alignment. Use of the two‐probe method resulted in measurement of the contact resistance rather than the volume resistance. The contact resistance increased reversibly upon tension.