Optimal sandwich core structures and forming tools for the mass production of sandwich structures
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United States of America Patent
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Sep 16, 2014
Grant Date -
Dec 12, 2013
app pub date -
Apr 9, 2013
filing date -
Mar 14, 2012
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Abstract
A sandwich structure is provided that includes a corrugated layer with at least one core layer (structure) made of a periodic array of adjacent truncated upward facing peaks and truncated downward facing valleys. Each truncated peak has a bonding land of an area A1. Each truncated valley has a bonding land of an area A2. A ratio of A1/A2 is less than 2. A distance D is between neighboring peaks, and a distance D is also between neighboring valleys. The corrugated layer is made from an initially flat sheet thickness of t. A first sheet layer is physically coupled to bonding lands of the truncated peaks. A second sheet layer is physically coupled to bonding lands of the truncated valleys.
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