Method and material for additive manufacturing
A structure is disclosed that is additively manufactured. The structure may include at least one continuous reinforcement, and a healing matrix associated with the at least one continuous reinforcement. Wherein a cure energy is applied to the at least one continuous reinforcement at a time of failure, the healing matrix is caused to cure and shore up the at least one continuous reinforcement.
1. An additively manufactured structure, comprising:
a structural reinforcement;
a healing reinforcement that is different from the structural reinforcement; and
a healing matrix at least partially filling the healing reinforcement, wherein:
a cure energy applied at a time of failure causes the healing matrix to cure and shore up the structural reinforcement;
the healing matrix includes a base resin and a catalyst; and
at least one of the base resin and the catalyst is provided in a capsule that ruptures at the time of failure to initiate a reaction that cures the base resin.
2. The additively manufactured structure of claim 1 , wherein the healing reinforcement is one of a wire and a fiber optic.
3. The additively manufactured structure of claim 1 , wherein the healing matrix is one of a Triazolinedione, a covalent-adaptable network, and a spatioselective reversible resin.
4. The additively manufactured structure of claim 1 , wherein the healing matrix at least partially coats the structural reinforcement at a time of failure.
5. The additively manufactured structure of claim 1 , wherein the healing matrix at least partially fills the healing reinforcement.
6. The additively manufactured structure of claim 5 , wherein the healing matrix breaches the healing reinforcement at the time of failure.
7. The additively manufactured structure of claim 1 , wherein each of the base resin and the catalyst are provided within separate capsules that rupture at the time of failure.
8. The additively manufactured structure of claim 1 , wherein the at least one of the base resin and the catalyst provided in the capsule is distributed within a bath of the other of the base resin and the catalyst at a ratio specified for curing of the bath.
9. An additively manufactured structure, comprising:
at least one continuous reinforcement; and
a healing matrix at least partially filling the at least one continuous reinforcement, wherein the healing matrix breaches from the at least one continuous reinforcement at a time of failure, at least partially coats the at least one continuous reinforcement, and cures,
wherein:
the healing matrix includes a base resin and a catalyst; and
at least one of the base resin and the catalyst is provided in a capsule that ruptures at the time of failure to initiate a reaction that cures the base resin.
10. The additively manufactured structure of claim 9 , wherein the at least one continuous reinforcement includes:
a solid structural reinforcement; and
a hollow healing reinforcement that receives the healing matrix.
11. The additively manufactured structure of claim 10 , wherein the hollow healing reinforcement is at least one of more brittle and smaller than the solid structural reinforcement.
12. The additively manufactured structure of claim 10 , wherein:
the solid structural reinforcement is at least partially coated with at least one of the base resin and the catalyst at a time of failure; and
the other of the base resin and the catalyst breaches the capsule at the time of failure to initiate a reaction that cures the base resin.
13. The additively manufactured structure of claim 9 , wherein the healing matrix is pressurized during operational use of the additively manufactured structure.
14. The additively manufactured structure of claim 9 , wherein each of the base resin and the catalyst are provided within separate capsules that rupture at the time of failure.
15. The additively manufactured structure of claim 9 , wherein the at least one of the base resin and the catalyst provided in the capsule is distributed within a bath of the other of the base resin and the catalyst at a ratio specified for curing of the bath.
16. An additively manufactured structure, comprising:
a structural reinforcement;
a healing reinforcement containing a liquid healing matrix; and
a structural matrix at least partially coating the structural and healing reinforcements, the structural matrix being cured,
wherein the liquid healing matrix includes a base resin and a catalyst, at least one of which is contained within capsules inside the healing reinforcement.
17. The additively manufactured structure of claim 16 , wherein:
the liquid healing matrix is curable when exposed to environmental conditions; and
the healing reinforcement is more brittle than the structural reinforcement.
18. The additively manufactured structure of claim 16 , wherein each of the base resin and the catalyst are provided within separate capsules that rupture at the time of failure.
19. The additively manufactured structure of claim 16 , wherein the at least one of the base resin and the catalyst provided in the capsule is distributed within a bath of the other of the base resin and the catalyst at a ratio specified for curing of the bath.