Residual Effects in Laminated, Curved, Composite Panels

摘要

Analytical techniques were employed to characterize residual effects induced in laminated, curved, composite panels during fabrication processing. The residual effects include circumferential residual stresses which develop while the laminated panel is in place over its mold, and a change in panel curvature which occurs following release of the panel from the mold and relief of the residual stresses. The analysis was utilized to predict the radium of a mold upon which panels could be fabricated so that they deform, upon release from the mold, to a predetermined radius of curvature. Sample panels were fabricated which provided experimental data and particle verification of the analytical methods developed. (ERA citation 12:016236)