11503 誘電特性の変化を用いた繊維強化プラスチックスの非破壊検査(機械材料)

概要

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Non-contact detection of cumulative damage stored in composites has been carried out using microwave reflection/transmission energy. The change of these properties due to the incorporation of micro-fracture events which include matrix cracking, interface debonding etc. has been successfully obtained. The damage behavior and the changes are discussed in terms of nondestructive evaluation of composites. The present research centered on the application and use of microwaves in a non-contact method for determining the amount of fracture damage accumulated in glass fiber reinforced plastic (GFRP). It will be shown that as the damage within the GFRP increases, a change in the properties associated with the microwaves used also change, thereby giving a strong correlation between the accumulated damage within the GFRP and the microwaves used to detect that damage.
一般社団法人日本機械学会の論文
2007-03-15