| 摘要 |
<p>A composite structure comprising a first section (15); a second section (13); and a curved corner (18) joining the first section to the second section. The structure comprises a stack of fibre-reinforced plies (20-30). The stack includes a first external ply (20) which runs from the first section into the second section round an inside of the corner; and a second external ply (21) which runs from the first section into the second section round an outside of the corner (18). A discontinuous first internal ply (28) is sandwiched between the first and second external plies (20,21) and is dropped off inside the structure so that more of the first internal ply (28) is located within the first section (14) than within the second section (13). A second internal ply (22,25,30) is sandwiched between the first and second external plies (20,21). The fibres of the first internal ply (28) run at an angle €¢ to the fibres of the second internal ply (22,25,30). In some embodiments the angle €¢ is greater than 3° but less than 20°. In one embodiment the angle €¢ is between 35° and 42°.</p> |
