Tapered ultrasonic reference standard
First Claim
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1. An ultrasonic inspection reference standard for composite materials having at least one first tapered section comprising:
- a member having at least one second tapered section, said member being dual-tapered with a general axis of both of the dual-tapers being parallel to one-another;
wherein said member is manufactured from a multiple-layered polymer resin using a stereo lithography process.
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Abstract
The invention relates to tapered reference standards, and methods for their manufacture and use. An ultrasonic inspection reference standard for tapered, composite materials may include a member having at least one tapered section. The member may be manufactured from a fiber-free polymer resin using a stereo lithography process. The tapered reference standards may substantially mimic the affect on ultrasonic sound passing through tapered sections in composite laminates.
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Citations
34 Claims
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1. An ultrasonic inspection reference standard for composite materials having at least one first tapered section comprising:
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a member having at least one second tapered section, said member being dual-tapered with a general axis of both of the dual-tapers being parallel to one-another; wherein said member is manufactured from a multiple-layered polymer resin using a stereo lithography process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An ultrasonic inspection process for tapered composite materials comprising the steps of:
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manufacturing a reference standard, comprising at least one of a discrete wire or a mesh, and a member, wherein the member has at least one first tapered section, and is manufactured from a multiple-layered polymer resin using a stereo lithography process; and inspecting a porous fiber-reinforced composite part having at least one second tapered section with an ultrasonic technique using said reference standard. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An ultrasonic inspection reference standard for composite materials having at least one first tapered section comprising:
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a member having at least one second tapered section, wherein said member is manufactured from a polymer resin, and said ultrasonic reference standard is for composite materials having porosity; and at least one of a discrete wire or a mesh. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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Specification