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公开(公告)号：US11981111B2
公开(公告)日：2024-05-14
申请号：US17404733
申请日：2021-08-17
CPC分类号： B32B3/18 , B32B1/00 , B32B3/26 , B32B3/30 , B32B7/022 , B32B2307/546 , Y10T428/2457
摘要： An auxetic member for load bearing structures has a section including a plurality of structural units, and a top layer provided at a top end of the section and a bottom layer provided at a bottom end of the section. The structural units includes ribs with parallel surfaces and ribs with re-entrant surfaces and the ribs with parallel surfaces of the structural units are oriented at an angle α relative to a horizontal plane, the structural unit including a void enclosed by the ribs with parallel surfaces and ribs with re-entrant surfaces. The member is characterized in that the void of the structural units is filled with a packing material for improving load bearing capacity.
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公开(公告)号：US20220332081A1
公开(公告)日：2022-10-20
申请号：US17404467
申请日：2021-08-17
摘要： The invention in its various embodiments discloses a structural member designed for improved load bearing using auxetic expandable-collapsible structural units. The auxetic structural units may have parallel-sided surfaces oriented at an angle (α) to the horizontal direction. In some embodiments the angle varies between 40-140 degree within a layer. The structural member may include at least two layers having identical structural units, the layers varying in orientation α of the structural units, or material or wall thickness thereof. In various embodiments, the angular orientation α may be the same in alternate layers. The structural member provides load bearing capacity of a solid component at 30-40% of material weight. The invention discloses an optimized structure with structural units oriented alternately at α values of 45° or 135° .
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公开(公告)号：US20220410524A1
公开(公告)日：2022-12-29
申请号：US17404733
申请日：2021-08-17
摘要： An auxetic member for load bearing structures has a section including a plurality of structural units, and a top layer provided at a top end of the section and a bottom layer provided at a bottom end of the section. The structural units includes ribs with parallel surfaces and ribs with re-entrant surfaces and the ribs with parallel surfaces of the structural units are oriented at an angle a relative to a horizontal plane, the structural unit including a void enclosed by the ribs with parallel surfaces and ribs with re-entrant surfaces. The member is characterized in that the void of the structural units is filled with a packing material for improving load bearing capacity.
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