電気抵抗変化法を用いた擬似等方CFRP積層厚板のはく離モニタリング(J09-1 モニタリング,J09 知的材料・構造システム)

概要

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Detection of damages for composites is a difficult task for visual inspections. The difficulty of detections causes the importance of development of smart structures for monitoring damages of graphite/epoxy laminated composites. In the previous study, applicability of an electrical resistance change method to identify a delamination of a thin laminate has been confirmed. Quasi-isotropic thick plates are, however, employed in actual structures. To adopt the electrical resistance change method for damage detection of actual structures, applicability of the method for delamination detection of quasi-isotropic thick plates must be confirmed. In the present study, the method is applied to a plate-type specimen with embedded delamination of thick quasi-isotropic laminates. Twelve electrodes made from silver-paste are mounted on the specimen surface, and the electrical resistance changes are measured using a conventional strain gage amplifier. As a result, applicability of delamination detection using electrical resistance change method for thick quasi-isotropic thick plates was confirmed experimentally.
社団法人日本機械学会の論文
2004-09-04