Journal of The School of Marine Science and Technology,Vol.3 No.3
Verification to Nondestructive Evaluation Method Using Characteristic
of Dynamic Response for A Composite Thin Plate
Tetsutaro KAWAKAMI, Hideyuki KUSAKA, Yukari AOKI and Yuki YAMAGUCHI
Abstract
The dynamic properties of composite plates are analyzed by the boundary element method in this study. The
composite plate is defined in this analysis by combining an infinite thin plate and a finite thin plate, that is casted
into the infinite plate,and whose material properties are different from the infinite plate.To investigate the dynamic
response of the composite thin plate, numerical analyses for some models are carried out. The results show the
dynamic response of the composite plates well, and also confirm the usefulness of the proposed method for the
composite plate applications.Furthermore,the proposed method was applied to numerical experiment of evaluation
for a defect in thin plate.Results of numerical experiment on these models show that this nondestructive evaluation
method has high appropriateness and usefulness to inspect defects in thin plate.