公开(公告)号：US12050188B2

公开(公告)日：2024-07-30

申请号：US17441944

申请日：2020-03-27

Applicant: IHI Corporation

Inventor： Sayo Yamaha ,  Takahiro Fukumaru ,  Yuichi Yamaguchi

IPC: G01N23/046 ,  G01N3/08 ,  B32B5/02 ,  G01B15/02 ,  G01N21/84

CPC classification number: G01N23/046 ,  G01N3/08 ,  B32B5/02 ,  G01B15/02 ,  G01N2021/8444

Abstract: A strength evaluation method is a strength evaluation method for a composite material in which a plurality of fiber layers are laminated and includes a meandering state measuring process of measuring a meandering state of fibers of the plurality of fiber layers in a direction along the fiber layers, a meandering thickness measuring process of measuring a meandering thickness that is a thickness in a lamination direction of a part in which meanderings of fibers of the plurality of fiber layers occur, and a strength evaluation process of evaluating a strength of the composite material based on the meandering state and the meandering thickness.