| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of cracks formed in noodles by mechanical and/or thermal stresses, which weaken an entire spar, by providing a method of preventing propagation of cracks through the noodles employed in constructing the spar.SOLUTION: A composite radius filler noodle 40 filled into a V-shaped gap 42 formed by C-shaped channels 44, 46 is basically constructed as a stack of unidirectional pre-preg tape and composite pre-preg fabric strips. Even if cracks are formed in a core of the noodle 40, the cracks are prevented from propagating to an exterior surface of the noodle 40 and the rest of a spar structure.SELECTED DRAWING: Figure 3 |
