摘要 |
The invention relates to pseudo porosity standards, and methods for their manufacture and use, which substantially mimic the effect porosity has on ultrasonic sound as it passes through a cored composite laminate having porosity. An ultrasonic inspection reference standard (80) for cored composite laminates having porosity includes a member (82) having at least one thickness, at least one core (88), and at least one mesh (86). The member may be manufactured from a fiber-free polymer resin using a stereo lithography process. Use of the mesh produces a- standard which transmits ultrasonic energy, with the mesh scattering and attenuating the energy. Use of the core aides in modeling a cored composite laminate. The manufactured reference standard may replace more costly porous, cored, composite laminate reference standards in the aircraft industry and in other non-aircraft applications. |
申请人 |
THE BOEING COMPANY;ENGELBART, ROGER, W.;VACCARO, CHRISTOPHER, M.;BEISIEGEL, APRIL, L. |
发明人 |
ENGELBART, ROGER, W.;VACCARO, CHRISTOPHER, M.;BEISIEGEL, APRIL, L. |