Sandwich structure
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United States of America Patent
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-
Mar 20, 2001
Grant Date -
N/A
app pub date -
Jan 9, 1998
filing date -
Jul 12, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sandwich structure has a core which comprises an array of core units (3) that are arranged in a staggered pattern between the walls (1,2) of the structure such that in a first direction (II--II) adjacent core units (3) are substantially aligned whereas in another direction (III--III) at least some adjacent core units (3) partly face each other and the core units (3) are arranged in said first direction (II--II) at generally larger mutual spacings (7) than in said second direction (III--III). The thus formed core is drapeable yet structural, so that it can conform to curved structures and the staggered mutual spacings (7) form no through-gaps in the core webs so that the risk of crack formation in the walls (1,2) and between walls and core is minimized.
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