Guided Waves for Porosity Estimation in Complex Shaped Structures

Date
1991
Authors
Balasubramaniam, K.
Rose, J.
Huang, Y.
Eder, J.
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Altmetrics
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Abstract

One of the key benefits of modern composite materials manufacturing is that it allows the design of todays structures to have complex contours. This is increasingly being found in most all facets of composite materials industry. A typical manufacturing process for such complex shapes would be to cut the pre-preg composite sheet to dimensions using computer controlled machines, place the various pieces in a specified lay-up sequence and use the vacuum bag to remove air and waste gas while it is cooled inside an autoclave, subjected to a controlled temperature-pressure cycle. Other methods such as filament winding, braiding etc. can also be used to fabricate such structures.

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