Abnormality detection method for fiber reinforced plastic panel and fiber reinforced base material used in this abnormality detection method

摘要

PPROBLEM TO BE SOLVED: To provide a fiber reinforced plastic panel that allows easily detecting defects inside the panel after curing, a method of detecting its defects, and a fiber reinforced base for use in the method. PSOLUTION: After a fiber reinforced plastic panel 1 is manufactured, a measuring instrument 6 is used to inspect whether or not a conductor 4a buried therein with each end extended to an end face of the panel is conducting; if it is not conducting, a determination is made that there is damage to the inside of the panel, such as deformation; then the electrical capacitance or electrical resistance between two conductors 4a, 4e selected from the conductors 4 buried therein is measured with the measuring instrument 6, and if it is greater than a predetermined value, a determination is made that there is a cavity inside the panel. During the manufacture of the fiber reinforced plastic panel 1, the fiber reinforced base 3 with the conductor 4 disposed therein is simply laid as a portion of a laminate 2, whereby after hardening of the panel the conductor 4 detects defects inside the panel. PCOPYRIGHT: (C)2009,JPO&INPIT