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METHOD FOR CREATING NON-INSERTED ARTIFICIAL DISBONDS OR DELAMINATIONS FOR NONDESTRUCTIVE INSPECTION TEST STANDARDS
METHOD FOR CREATING NON-INSERTED ARTIFICIAL DISBONDS OR DELAMINATIONS FOR NONDESTRUCTIVE INSPECTION TEST STANDARDS
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机译:用于创建非破坏性检验标准的非插入人工破坏或分层的方法
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摘要
A method for creation of a non-destructive inspection (NDI) standard employs a coupon of bonded layers or a composite structure having a predetermined thickness. A predetermined pulse width is defined. The coupon and a laser source are positioned with respect to one another and the laser source is used to create a laser pulse having the predetermined pulse width to create a disbond or delamination in the bond layer at a predetermined location. The coupon may then be used as a standard for calibration of NDI inspection tools by scanning the coupon with the tool to provide an inspection output. The output is then examined to confirm that the disbond or delamination in the coupon is properly identified in the output.
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