Method for producing composite laminates using a collapsible mandrel

摘要

A collapsible bladder has flexible outer walls and at least one strut inside the enclosure. The strut is connected to the outer walls and controls the shape into which the enclosure may be collapsed.

主权项

1. A collapsible bladder, comprising:
flexible outer walls that comprise an enclosure, such that the flexible outer walls form at least one corner, and the at least one corner comprises a pressure bulb; and a first strut inside the enclosure directly connected to a second strut inside the enclosure, each strut being directly connected to a flexible outer wall of the flexible outer walls, such that in operation, the first strut and the second strut control a shape into which the enclosure collapses.