Digital flexural materials are kits of discrete parts that can be assembled into a lattice structure to produce functionally useful assemblies. Digital flexural materials enable design of materials with many small and inexpensive flexures that combine in a lattice geometry that permits deformation w
Digital flexural materials are kits of discrete parts that can be assembled into a lattice structure to produce functionally useful assemblies. Digital flexural materials enable design of materials with many small and inexpensive flexures that combine in a lattice geometry that permits deformation without compromising the strength of the assembly. The number of types of parts in a kit is small compared to the total number of parts. A product constructed from digital flexural materials comprises a set of discrete units that are assembled into the structure according to a lattice geometry, with a majority of the units being reversibly connected to at least two other units in the set according to the lattice geometry, and wherein, in response to loading of the structure, a reversible deformation of at least part of the structure occurs. An automated process may be employed for constructing a product from digital flexural materials.
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1. A product comprising a set of discrete units, the set of discrete units being reversibly assembled, or reversibly assemblable, into a structure, wherein: the units in the set are reversibly assembled, or are reversibly assemblable, into the structure according to a lattice geometry, wherein the u
1. A product comprising a set of discrete units, the set of discrete units being reversibly assembled, or reversibly assemblable, into a structure, wherein: the units in the set are reversibly assembled, or are reversibly assemblable, into the structure according to a lattice geometry, wherein the units, when assembled according to the lattice geometry, together comprise a stretch-bend coupled material;a majority of the discrete units are each reversibly connected, or are reversibly connectable, to at least two other units in the set according to the lattice geometry; andwherein, in response to greater than minimal loading of the structure, a reversible deformation of at least part of the structure occurs. 2. The product of claim 1, wherein the reversible deformation of at least part of the structure is due to at least in part to at least one of: the shape of the units in the set, the material composition of the units in the set, the configuration of connections between the units of the set, and the configuration of the lattice geometry. 3. The product of claim 2, wherein the connections are elastic. 4. The product of claim 1, wherein the units in the set of discrete units are identical. 5. The product of claim 1, wherein the structure fully encloses an interior volume. 6. The product of claim 1, wherein some of the units include electrical conductors and others of the units do not include electrical conductors. 7. The product of claim 1, wherein the units are reversibly connected, or are reversibly connectible, to the other units in the set by connections that are flexural locking mechanisms, pinned locking mechanisms, or compression clips. 8. The product of claim 1, wherein at least some of the discrete units are reversibly connected to others of the discrete units by connections that transfer force between connected units. 9. The product of claim 1, wherein the units in the set of discrete units are of at least two types. 10. The product of claim 9, wherein at least one of the at least two types of units is a connector unit. 11. The product of claim 10, wherein at least one of the at least two types of units differs in material composition or property from at least another of the at least two types of units. 12. The product of claim 9, wherein the structure fully encloses an interior volume. 13. The product of claim 1, wherein at least some of the units comprise composite material. 14. A product comprising a set of discrete units, the set of discrete units being reversibly assembled, or reversibly assemblable, into a structure, wherein: the units in the set are reversibly assembled, or are reversibly assemblable, into the structure according to a lattice geometry;the units in the set of discrete units are of at least two types;a majority of the discrete units are each reversibly connected, or are reversibly connectable, to at least two other units in the set according to the lattice geometry; andwherein, in response to greater than minimal loading of the structure, a reversible deformation of at least part of the structure occurs. 15. The product of claim 14, wherein at least one of the at least two types of units is a connector unit. 16. The product of claim 15, wherein at least one of the at least two types of units differs in material composition or property from at least another of the at least two types of units. 17. The product of claim 14, wherein the reversible deformation of at least part of the structure is due to at least in part to at least one of: the shape of the units in the set, the material composition of the units in the set, the configuration of connections between the units of the set, and the configuration of the lattice geometry. 18. The product of claim 17, wherein the connections are elastic. 19. The product of claim 14, wherein some of the units include electrical conductors and others of the units do not include electrical conductors. 20. A product comprising a set of discrete units, the set of discrete units being reversibly assembled, or reversibly assemblable, into a structure, wherein: the units in the set are reversibly assembled, or are reversibly assemblable, into the structure according to a lattice geometry;at least some of the units comprise composite material;a majority of the discrete units are each reversibly connected, or are reversibly connectable, to at least two other units in the set according to the lattice geometry; andwherein, in response to greater than minimal loading of the structure, a reversible deformation of at least part of the structure occurs.
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