Advanced grid structure

Details Advanced grid structure Advanced grid structure

2011-08-09

2011-08-09

O'Hern, Brent T (Department: 1783)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

C156S290000, C428S105000, C428S107000, C428S109000, C428S110000, C428S112000, C428S114000, C428S373000, C442S361000, C442S363000, C442S364000

Reexamination Certificate

active

07993727

ABSTRACT:
An advanced grid structure has high strength and low thermal expansion, and includes first, second, and third tape prepreg groups each including a plurality of tape prepregs. Each tape prepreg includes carbon fibers that are aligned in a first, second, or third direction and that form respective first, second, and third grid sides. A plurality of each the first, second, and third grid sides are spaced apart at equal intervals in the respective first, second, or third direction to form respective first, second, and third grid side groups. A structure ratio of the advanced grid structure is larger than 0 and 0.107 or less, 0.053 or less, or 0.040 or less. A thermal expansion coefficient of the advanced grid structure is −0.9 ppm/K or more and 0.9 ppm/K or less. The carbon fibers have a tensile modulus of elasticity of 280 GPa or more and 330 GPa or less.

REFERENCES:
patent: 4635071 (1987-01-01), Gounder et al.
patent: 5686930 (1997-11-01), Brydon
patent: 6270426 (2001-08-01), Matsumoto
patent: 7479201 (2009-01-01), Wegner et al.
patent: 2004/0213952 (2004-10-01), Takemura et al.
patent: 2008/0045109 (2008-02-01), Ogata et al.
K. Joon Yoon, et al., “Composite Grid Structure With Near-Zero Thermally Induced Deflection”, 41stAIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Exhibit, Apr. 2000, pp. 971-976.

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