Energy dissipative cushioning elements
Disclosed embodiments include methods, computer program products, and systems. Given by way of example only and not of limitation, in various embodiments a method includes: determining an event; actuating a cushioning element in response to the determining the event, the cushioning element including one or more tension-bearing members; and dissipating at least some of an energy associated with a collision based on deforming at least one of the tension-bearing members during the collision, the deforming including substantially inelastically stretching the at least one of the tension-bearing members.
1. An apparatus comprising:
a cushioning element including at least one tension-bearing member configured to deform in response to a collision or impact, the at least one tension-bearing member being further configured to substantially inelastically deform after reaching an elastic limit during a deformation; and
a heat capacity material associated with at least one tension-bearing member, the heat capacity material being configured to at least one of: absorb at least a portion of thermal energy associated with a collision or impact, increase a capacity of the at least one tension-bearing member with heat capacity material associated therewith to perform work, and increase a capacity to have work done on the tension-bearing member with heat capacity material associated therewith.
2. The apparatus of claim 1 , wherein the heat capacity material is disposed in contact with the at least one tension-bearing member with heat capacity material associated therewith.
3. The apparatus of claim 2 , wherein the heat capacity material is at least one of provided on a surface of the at least one tension-bearing member disposed in contact therewith and provided within at least one fiber of the at least one tension-bearing member disposed in contact therewith.
4. The apparatus of claim 2 , wherein the heat capacity material is applied to the at least one tension-bearing member with heat capacity material associated therewith responsive to a predetermined condition.
5. The apparatus of claim 2 , wherein the heat capacity material is configured to increase temperature at which the at least one tension-bearing member with heat capacity material associated therewith at least one of fails and breaks.
6. The apparatus of claim 5 , wherein the heat capacity material is further configured to increase capacity of the at least one tension-bearing member with heat capacity material associated therewith to at least one of perform work and stretch during a collision.
7. The apparatus of claim 6 , wherein the heat capacity material is further configured to increase capacity of the at least one tension-bearing member with heat capacity material associated therewith to dissipate kinetic energy during a collision.
8. The apparatus of claim 1 , wherein the heat capacity material includes phase change material.
9. The apparatus of claim 8 , wherein the phase change material includes water.
10. An apparatus comprising:
a cushioning element including at least one tension-bearing member configured to deform in response to a collision or impact, the at least one tension-bearing member being further configured to substantially inelastically deform after reaching an elastic limit during a deformation; and
a heat capacity material associated with at least one tension-bearing member, the heat capacity material being stored out of contact with the at least one tension-bearing member associated therewith, the heat capacity material being applied to the at least one tension-bearing member associated therewith responsive to a predetermined condition, the heat capacity material being configured to at least one of: absorb at least a portion of thermal energy associated with a collision or impact, increase a capacity of the at least one tension-bearing member with heat capacity material associated therewith to perform work, and increase a capacity to have work done on the tension-bearing member with heat capacity material associated therewith.
11. The apparatus of claim 10 , further comprising:
at least one storage vessel, the heat capacity material being stored in the at least one storage vessel.
12. The apparatus of claim 11 , wherein the storage vessel is configured to at least one of melt and rupture responsive to the predetermined condition.
13. The apparatus of claim 12 , wherein the predetermined condition includes a threshold temperature.
14. The apparatus of claim 11 , wherein the storage vessel includes a capsule.
15. A method comprising:
providing a cushioning element including at least one tension-bearing member configured to deform in response to a collision or impact, the at least one tension-bearing member being further configured to substantially inelastically deform after reaching an elastic limit during a deformation; and
associating a heat capacity material with at least one tension-bearing member, the heat capacity material being configured to at least one of: absorb at least a portion of thermal energy associated with a collision or impact, increase a capacity of the at least one tension-bearing member with heat capacity material associated therewith to perform work, and increase a capacity to have work done on the tension-bearing member with heat capacity material associated therewith.
16. The method of claim 15 , wherein associating a heat capacity material with at least one tension-bearing member includes disposing the heat capacity material in contact with the at least one tension-bearing member with heat capacity material associated therewith before a collision or impact.
17. The method of claim 16 , wherein disposing the heat capacity material in contact with the at least one tension-bearing member with heat capacity material associated therewith before a collision or impact includes at least one of providing the heat capacity material on a surface of the at least one tension-bearing member disposed in contact therewith and providing the heat capacity material within at least one fiber of the at least one tension-bearing member disposed in contact therewith.
18. The method of claim 15 , wherein associating a heat capacity material with at least one tension-bearing member includes applying the heat capacity material to the at least one tension-bearing member with heat capacity material associated therewith responsive to a predetermined condition.
19. The method of claim 18 , further comprising:
storing the heat capacity material in at least one storage vessel.
20. The method of claim 19 , wherein applying the heat capacity material to the at least one tension-bearing member with heat capacity material associated therewith responsive to a predetermined condition includes at least one of melting and rupturing the at least one storage vessel responsive to the predetermined condition.