Granular magnetically strengthened structures

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United States of America

PATENT NO 12046400
SERIAL NO

17354822

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Abstract

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Exemplary inventive practice provides a structure that is attributed with superior resistance to loading. For example, an inventive structure includes two coaxial axisymmetric (e.g., cylindrical) shells and a granulation-filled matrix material occupying the peripheral space between the shells. According to some inventive embodiments, the granulation-filled matrix material has a loading-responsive matrix (e.g., shear-thickening fluid or highly rate-sensitive polymer) and granules dispersed therein. When the inventive structure encounters pressure loading at its exterior shell, the consistency of the loading-responsive matrix becomes thicker or firmer and thereby promotes, among the granules, interactive mechanisms (e.g., friction and/or arching) that reinforce the granulation-filled matrix material. According to some inventive embodiments, the granulation-filled matrix material has a magnetic-field-responsive matrix and magnetizable granules dispersed therein, and is magnetically fortified via application of a magnetic field (e.g., continuously applied where the matrix is magnetorheological fluid, or temporarily applied where the matrix is rheological fluid containing diamagnetic particles).

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Patent Owner(s)

Patent OwnerAddress
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY875 N RANDOLPH ST OFFICE OF NAVAL RESEARCH ROOM 522 ATTN CODE OOCCIP ARLINGTON VA 22203-1995

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Balsara, Hiren D Catonsville, US 2 2
Dudt, Philip J North Bethesda, US 19 102
Nasrin, H John North Potomac, US 2 2

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