| 摘要 |
A composite structure which may form, for example, the skin of an aircraft wing or fuselage comprises a panel (20) and a series of stringers (21-23) bonded to the surface of the panel (20). Each stringer comprises a web (24) extending at right angles to the panel (20) and a pair of flanges (25, 26) which are coplanar with the panel. The web (24) is tapered at the run-out in order to facilitate load transfer from the skin to the stringer, by providing a gradual increase in transverse bending and axial stiffness and relieving local stress concentrations. XA pad (27) protrudes downwardly from the base of the stringer (22) and extends beyond the ends of the web (24) and flanges (25, 26). The pad (27) is embedded in a recess in the panel. The recess has a right-hand end wall (30) and a left-hand end wall (31). The walls (30, 31) are oriented in substantially opposite directions, and extend across the width of the stringer substantially at right angles to its length. The end wall (30) engages a right-hand end surface (32) of the pad (27), and the end wall (31) engages a left-hand end surface (33) of the pad (27). |
