Patent ID: 8906493
Filing Date: 2014-12-09
Classification: B29C,B29K,B29L,Y02T,Y10T

Abstract:
1. A structural panel, comprising: a 2-4 mm thick composite skin with fiber reinforcement formed from continuous fibers, the composite skin is a carbon-epoxy resin composite with a continuous fiber volume ratio of greater or equal to 50%, one surface of said skin being exposed to impacts; a layer formed from a hyper-elastic material formed from a chloroprene elastomer with a thickness equal to or less than the thickness of said composite skin and bonded adhesively with epoxy glue to a first surface of the composite skin, the hyper-elastic material having elongation capabilities of about 500%; and stiffeners where the layer of hyper-elastic material is bonded to the skin between said stiffeners, wherein the structural panel is resistant to operational static and fatigue stresses imposed on a second surface of the composite skin opposite the first surface, and debris striking the second surface with an incident energy of 1000 to 4000 joules will have energy dissipated by local rupture of the composite skin and no peeling off of the layer of hyper-elastic material by glue rupturing along the composite skin, and the panel is configured such that some energy of the debris is dissipated by local rupture of the composite skin, and energy absorbed by deformation of the layer of hyper-elastic material expels the debris.