Laminate condition calculation method, laminate condition calculation device, and laminate condition calculation program

摘要

A method for calculating a laminate state of a CFRP laminate according to one embodiment comprises obtaining a plurality of images of a cross section (15) of the CFRP laminate (10) orthogonal to a lamination direction (P) by imaging the CFRP laminate (10) with X-rays at a plurality of different positions in the lamination direction (P), the CFRP laminate having first layers (11) with carbon fibers which are oriented in a first direction orthogonal to the lamination direction (P), and second layers (12) with carbon fibers which are oriented in a second direction that is orthogonal to the lamination direction (P) and different from the first direction, and calculating a parameter that correlates with a number of voids formed in the first layers (11) and the second layers is, from the plurality of acquired images, and distinguishing between the first layers (11) and the second layers (12) and using the calculated parameter.