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http://dx.doi.org/10.3740/MRSK.2002.12.2.135

Evaluation of Fracture Detection Function for the FRP by Electrical Resistance Measurement  

Sin, Sun-Gi (Division of Metallurgical and Mterial, and Chemical Engineering Dong-A Unive)
Kim, Yeong-Hui (Division of Metallurgical and Mterial, and Chemical Engineering Dong-A Unive)
Lee, Jun-Hui (Division of Metallurgical and Mterial, and Chemical Engineering Dong-A Unive)
Publication Information
Korean Journal of Materials Research / v.12, no.2, 2002 , pp. 135-139 More about this Journal
Abstract
Carbon powders (CP) and carbon fiber (CF) were introduced info glass fiber reinforced plastics (FRP) composites to obtain fracture detection function. The composites were evaluated through the relation between a load-displacement curve and an electrical resistance change curve in three point bending test. CP containing FRP (CP-FRP) has a sensitivity of electrical resistance change at much lower load level than CF containing FRP (CF-FRP). In loading-unloading tests, CP-FRP showed a large amount of residual electrical resistance which enables the estimation of loading hysteresis.
Keywords
FRP; carbon powder; fracture detection; electrical resistance;
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