METHODS FOR COMBINING COMPONENTS OF VARYING STAGES OF CURE
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United States of America Patent
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Issued Date -
Jun 19, 2014
app pub date -
Dec 14, 2012
filing date -
Dec 14, 2012
priority date (Note) -
Abandoned
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Abstract
The present invention provides a method of fabricating a composite structure from components of varying stages of cure while reducing the steps associated with the fabrication process of infusing, curing, and bonding composite materials to form a hybrid unitized structure. The method provides a pre-cured stiffener and a pi-preform having a clevis and a base portion. The pre-cured stiffener may be inserted into the clevis of the pi-preform to form a composite structure assembly. The composite structure assembly may be infused with a resin system at the time of cure and bonded to a second composite structure to form a hybrid unitized structure.
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