Microcrack resistant fiber reinforced resin matrix composite lam

Details Microcrack resistant fiber reinforced resin matrix composite lam Microcrack resistant fiber reinforced resin matrix composite lam

1986-10-22

1989-04-11

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

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

428408, 428902, 428113, 264 297, B32B 512, B32B 900, C01B 3100

Patent

active

048205672

ABSTRACT:
A microcrack resistant graphite fiber reinforced high temperature resin matrix composite laminate is disclosed. The laminate comprises layers having the fiber reinforcement in parallel alignment within each layer. The layers are arranged such that the fibers are oriented at 0.degree. and 90.degree. (.+-.10.degree.) in alternating layers. The specific number of plies per layer is selected so as to produce microcrack resistance. A method for making a microcrack resistant graphite fiber reinforced high temperature resin matrix composite laminate is also disclosed.

REFERENCES:
patent: 4255478 (1981-03-01), Crane
patent: 4265968 (1981-05-01), Prewo
patent: 4413560 (1983-11-01), Prescott
patent: 4433115 (1984-02-01), Varma et al.
Fracture Toughness of Bismaleimide Resins; Microcracking in 0,90 Cross-ply Bismaleimide/Graphite Composites, Daniel A. Scola et al, SAMPE Journal, Mar./Apr. 1986, pp. 47-54.

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