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US 11,873,637 B2Granted
Bricks exhibiting negative Poisson's ratio
OwnerJoon Bu Parkinventor
Life of this patent
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Abstract
A brick includes outer walls defining a hollow interior space, the outer walls including: substantially flat top and bottom walls; and side walls angled inwards toward a central portion of the NPR brick, such that application of a compressive force between the top and bottom walls causes a lateral dimension of the brick between opposite side walls to decrease. At least some of the outer walls of the brick include a material having a negative Poisson's ratio (NPR).
Claims24
A brick comprising:
- outer walls defining a hollow interior space, the outer walls comprising:
- substantially flat top and bottom walls;
- and
- side walls angled inwards toward a central portion of the brick, such that application of a compressive force between the top and bottom walls causes a lateral dimension of the brick between opposite side walls to decrease,
- in which at least some of the outer walls of the brick include a material having a negative Poisson's ratio (NPR).
2 more elements
A brick wall comprising:
- an NPR brick configured to exhibit NPR behavior, the NPR brick comprising:
- substantially flat top and bottom walls;
- and
- four side walls, each side wall defining a first angled region angled inwards toward a central portion of the NPR brick;
- a positive Poisson's ratio (PPR) brick disposed adjacent to the NPR brick, the PPR brick comprising:
- substantially flat top and bottom walls;
- and
- four side walls, each side wall defining a second angled region angled outwards away from a central portion of the PPR brick,
- wherein the second angled region of one of the side walls of the PPR brick is nested within the first angled region of one of the side walls of the NPR brick;
- and
- mortar disposed between the NPR brick and the PPR brick.
8 more elements
A method of making a brick wall, the method comprising:
- laying an NPR brick and a PPR brick adjacent to one another to form a portion of a row of the brick wall,
- in which the NPR brick comprises:
- substantially flat top and bottom walls;
- and
- four side walls, each side wall defining a first angled region angled inwards toward a central portion of the NPR brick,
- in which the PPR brick comprises:
- substantially flat top and bottom walls;
- and
- four side walls, each side wall defining a second angled region angled outwards away from a central portion of the PPR brick, and
- in which laying the NPR brick and the PPR brick comprises:
- nesting the second angled region of one of the side walls of the PPR brick within the first angled region of one of the side walls of the NPR brick, and
- disposing mortar between the NPR brick and the PPR brick.
9 more elements
Dependencies are inferred from the claim text.