Patent ID: 9464965
Filing Date: 2016-10-11
CPC Classification: B29C,B29L,G01N

Claim Text:
1. A method for creating a non-destructive inspection (NDI) standard, the method comprising: selecting a coupon which is a laminate, said coupon having a predetermined thickness; defining a predetermined pulse width; positioning the coupon and a laser source relative to one another; and, using the laser source to generate a laser pulse having the predetermined pulse width to impact a first surface of the coupon creating an impulse which travels through the coupon as a compression wave with a reflecting tension wave created from an opposing surface of the coupon, the reflecting tension wave propagation transmitted to a laminate layer as a weak point, resulting in a delamination or disbond at the laminate layer in an impact area to create at least one defect in the coupon, wherein the predetermined pulse width is shorter than a travel time of the laser pulse through the thickness of the coupon.