AIRFOIL WITH SEQUENCED FIBER LAYUP
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United States of America
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Issued Date -
Feb 6, 2025
app pub date -
Aug 1, 2023
filing date -
Aug 1, 2023
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Abstract
An airfoil includes an airfoil wall formed of a fiber-reinforced composite material that has a layup structure that includes groups of unidirectional fiber tows. The groups are oriented at angles Θ(theta) relative to a reference orientation. The unidirectional fiber tows cross-over each other according to a sequence N1, N2, N3, . . . Ni, wherein N is a whole number that indicates which numerical group the unidirectional fiber tows are in and i is a whole number that indicates a sequential layup order of the unidirectional fiber tows. Each of the unidirectional fiber tows in the sequence starting at N2 crosses-over the unidirectional fiber tows of the other groups that have a lower value of i in the sequence.
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