K-2324 サンドイッチ積層板に対する欠陥検知に対する電気インピーダンス変化法の適用(J03-5 ひずみ計測)(J03 知的材料・構造システム)

概要

論文の詳細を見る
Debonding between a CFRP skin plate and core of a sandwich structure is one of the significant damages. It is, however, very difficult to inspect the damage by visual inspections. The present paper proposes a novel technique for detections of debondings of the sandwich plate. Usually, the core materials are not always electric conductive materials. Therefore, the present study employs detections of debondings from the accumulated damages in the CFRP skin plate with measurements of electric impedance changes of the CFRP skin plate. In order to measure the fundamental relationship between accumulated damage in a CFRP plate and electric impedance changes, tension tests were conducted with measuring electric impedance changes. Moreover, indentation tests of sandwich plates were conducted to investigate the electric resistance change during loading to observe the applicability of the method.
一般社団法人日本機械学会の論文
2001-08-22