Journal
INTERNATIONAL JOURNAL OF FATIGUE
Volume 32, Issue 1, Pages 197-207Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2009.02.044
Keywords
Carbon fabric; Polyphenylene sulphide; Damage monitoring; Electrical resistance; Four probe method
Funding
- BOF (Bijzonder Onderzoeksfonds UGent)
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This study investigates whether fatigue damage can be monitored using the electrical resistance of the carbon fabric-reinforced thermoplastic. A four-probe method, using rivets for the current injection and conductive tape for the voltage measurement is presented. Quasi-static and hysteresis tests are presented to assess the method, with promising results. Then, fatigue tests at both 2 and 5 Hz are discussed. For the material under study, neither stiffness reduction nor permanent elongation occurred and therefore, fibre fracture is not the dominant mode of damage. As a result, the electrical resistance measurement was not capable of monitoring damage growth inside the specimen, since it is sensitive to fibre failure. (C) 2009 Elsevier Ltd. All rights reserved.
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