CALCULATION METHOD FOR INTEGRATED QUANTITY OF ULTRAVIOLET TRANSMISSION QUANTITY AND CALCULATION METHOD FOR DETERIORATION RATE OF STRENGTH OF LAMINATE

摘要

PROBLEM TO BE SOLVED: To properly recognize a state of the laminate strength.SOLUTION: A method for calculating an integrated quantity of an ultraviolet transmission quantity of a base material and a resin laminated on the surface of the base material acquires information on a film thickness of the resin during a lamination process, acquires a film thickness reduction speed calculation term showing a relation between a color and a film thickness reduction speed, calculates the film thickness reduction speed based on the color of the resin and the film thickens reduction speed calculation term, calculates the film thickness of the resin for each lapse of time based on the film thickness of the resin and film thickness reduction speed during the lamination process, acquires an ultraviolet transmission quantity calculation term for acquiring the ultraviolet transmission quantity calculation term showing the relationship between the film thickens and the ultraviolet transmission quantity, calculates the ultraviolet transmission quantity for each elapse of time of the resin (gel coat part) based on the film thickness of the resin (gel coat part) for each time of elapse and the ultraviolet transmission quantity calculation term, and calculates an integrated quantity of the ultraviolet transmission quantity of the resin (gel coat part) by summing the ultraviolet transmission quantity for each elapse of time of the resin.SELECTED DRAWING: Figure 11