Energy absorbing fiberglass sandwich panel with corrugated core

A damage resistant sandwich panel comprising:

• a first outer face sheet for forming an outer face;
• a second inner face sheet for forming an inner face;
• a core sandwiched between the first outer face sheet and the second inner face sheet comprising a corrugated sheet having a plurality of elongated crests, a plurality of elongated valleys, and bridging core material between the elongated crests and the elongated valleys, this bridging core material disposed at acute angles relative to each of the elongated crests and the elongated valleys;
• the first outer face sheet, the second inner face sheet and the core constructed from a material having a tensile yield strength (elastic limit) in excess of 20,000 psi and a tensile strain to yield ratio exceeding 2.0%;
• the elongated crests of the core being fastened to the outer face sheet and the elongated valleys of the core being fastened to the inner face sheet to provide a first and largest spatial separation between the outer face sheet and the inner face sheet with the bridging core material between the elongated crests and the elongated valleys being disposed at an angle with respect to the outer face sheet and the inner face sheet;
• the elongated crests and the elongated valleys of the core when compressed by forces impacting the outer face sheet and/or the inner face sheet compressing against said respective outer face sheet and inner face sheet to dispose the bridging core material between the elongated crests and the elongated valleys substantially normal to the outer face sheet and the inner face sheet to impart increased resistance to the panel and the panel can elastically return to the first and largest spatial separation.