| 摘要 |
Composite components (28,30) fabricated to have shapes with in-plane curvature, for example, a spar cap (28,30) for an airfoil (14) having a swept configuration. A process for fabricating the component (28,30) includes forming prepregs (50) to have a laminate architecture containing a fibrous reinforcement material in a matrix of a partially-cured polymer material. The prepregs (50) are stacked and bonded together to form a straight elongate preform (52). An in-plane curvature is then induced in the preform (52) within a plane containing longitudinal and transverse directions of the preform (52) so as to create a swept configuration. The in-plane curvature is induced by applying forces parallel to the transverse direction of the preform (52) while the preform (52) is at a temperature of less than the melting temperature of the polymer material, such that the polymer material cold flows. The polymer material is then fully cured to yield the composite component (28,30). |
