Tailoring Thermoelastic Constants of Cellular and Lattice Materials with Pre-Stress for Lightweight Structures

A pre-tension long-fiber reinforced composite, comprising:

• a cellular or lattice material;
• and
• a plurality of reinforcements comprising pre-tensioned fiber or metal wire, wherein the plurality of reinforcements is embedded in the cellular or lattice material during a fabrication and curing process,
• wherein after the cellular or lattice material solidifies, pre-tension in the plurality of reinforcements is released and transferred to the cellular or lattice material.

A post-tensioned long-fiber reinforced composite, comprising:

• a cellular or lattice material;
• a plurality of reinforcements comprising pre-tensioned fiber or metal wire, wherein the plurality of reinforcements is embedded in the cellular or lattice material during a fabrication and curing process;
• and
• one or more bolts coupled to a plurality of ends of the plurality of reinforcements, wherein the plurality of bolts protrude beyond an edge of the cellular or lattice material,
• wherein each of the one or more bolts are adjustable after the fabrication and curing process to increase or reduce an amount of protrusion beyond the end of the cellular or lattice material,
• wherein, after the fabrication and curing process, an adjustment of the amount of protrusion beyond the end of the cellular or lattice material of a given bolt determines an amount of post-tension applied to the reinforcement coupled to the given bolt.