Active energy absorbing cellular metals and method of manufacturing and using the same

A multifunctional member adapted for structural deformation and reformation, the multifunctional member comprising:

• at least one active core member, said active cellular core member adapted to deform if exposed to an external force, and reform from a deformed state if exposed to a stimulant;
• at least one upper three-dimensional space filling layer disposed on said core member, said upper three-dimensional space filling layer comprised of an array of out of plane truss units;
• at least one lower three-dimensional space filling layer disposed on said active core member opposite said upper space filling layer, said lower three-dimensional space filling layer comprised of an array of out of plane truss units;
• said at least some of said upper and lower three-dimensional space filling layers are aligned relative to one another such that they will interpenetrate when subjected to the force.

A multifunctional member adapted for structural deformation and reformation, the multifunctional member comprising:

• at least one active core member, said active core member adapted to deform in tension if exposed to an external force, and reform from a deformed state if exposed to a stimulant;
• at least one upper three-dimensional space filling layer disposed on said core member, said upper three-dimensional space filling layer comprised of an array of out of plane truss units, said upper truss units having a base dimension as defined by the dimension substantially parallel to said active core member, and a height dimension as defined by the dimension substantially perpendicular to said active core member;
• at least one lower three-dimensional space filling layer disposed on said active core member opposite said upper space filling layer, said lower three-dimensional space filling layer comprised of an array of out of plane truss units, said lower truss units having a base dimension as defined by the dimension substantially parallel to said active core member, and a height dimension as defined by the dimension substantially perpendicular to said active core member, and said upper and lower three-dimensional space filling layers are adapted whereby when subject to the force the height dimensions of at least some of the upper and lower truss units decrease thereby deforming the active core member in tension.

A multifunctional member adapted for structural deformation in response to an impact or crushing force and reformation upon removal of said impact or crushing force, the multifunctional member comprising:

• at least one active core member, said active core member adapted to deform if exposed to said impact or crushing force, and reform from a deformed state if exposed to a stimulant upon removal of said impact or crushing force;
• at least one upper exterior member disposed on said core member;
• and
• at least one lower exterior member disposed on said core member opposite said upper exterior member, wherein at least a portion of said at least one upper exterior member and at least a portion of said at least one lower member interpenetrate one another when subject to the force.

A multifunctional member adapted for structural deformation and reformation, the multifunctional member comprising:

• at least one active core member, said active core member adapted to deform in tension if exposed to an external force, and reform from a deformed state if exposed to a stimulant;
• at least one upper three-dimensional space filling layer disposed on said core member, said upper three-dimensional space filling layer comprised of an array of out of plane truss units, said upper truss units having a base dimension as defined by the dimension substantially parallel to said active core member, and a height dimension as defined by the dimension substantially perpendicular to said active core member;
• at least one lower three-dimensional space filling layer disposed on said active core member opposite said upper space filling layer, said lower three-dimensional space filling layer comprised of an array of out of plane truss units, said lower truss units having a base dimension as defined by the dimension substantially parallel to said active core member, and a height dimension as defined by the dimension substantially perpendicular to said active core member, and said upper and lower three-dimensional space filling layers are adapted whereby when subject to the force the base dimensions of at least some of the upper and lower truss units increase thereby deforming the active core member in tension.