Ultrasonic inspection reference standard for composite...

Details Ultrasonic inspection reference standard for composite... Ultrasonic inspection reference standard for composite...

2007-05-15

2007-05-15

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

C073S001030, C204S192130

Reexamination Certificate

active

11090553

ABSTRACT:
An ultrasonic inspection reference standard for composite materials includes a prism that is manufactured from a polymer resin. The ultrasonic inspection reference standard may be a rectangular prism and may be a polymer resin step-wedge reference standard that has similar acoustic properties as prior art fiber-reinforced composite step-wedge reference standards at significantly lower manufacturing cost. A photo-polymer resin reference standard may be created using a stereo lithography process. The polymer resin reference standard may replace a currently used expensive fiber-reinforced composite reference standard. The ultrasonic inspection reference standard manufactured from a polymer resin may be used, for example, for ultrasonic inspection of fiber-reinforced composite parts. The polymer resin reference standard may be used, for example, in the aircraft airframe industry, both commercial and defense.

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