Digital flexural materials

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;
• and
• wherein, in response to greater than minimal loading of the structure, a reversible deformation of at least part of the structure occurs.

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;
• and
• wherein, in response to greater than minimal loading of the structure, a reversible deformation of at least part of the structure occurs.