Method for molding a thermoplastic composite sine wave spar structure

摘要: A method of forming composite sine wave spars from material. In accordance with the method, spar is formed web plies, filler separator plies and cap plies. The edges are cut to form a plurality teeth having different geometric configurations. first contours tool desired final part geometry. then folded over portion flanges upper lower U-shaped channels. portions channels not covered by using that intermesh layer respective or channel. reinforced through use placed between joined together so their located in line each other. triangular recesses filled radius fillers cross-section. Once place, further reinforce flanges. preferred embodiment, ply has eight configured fold contour cover order minimize overlapping gaps teeth.