Composite patches having Z-pin reinforcement

Details Composite patches having Z-pin reinforcement Composite patches having Z-pin reinforcement

1997-02-26

1999-03-16

Stemmer, Daniel

Stock material or miscellaneous articles

Patched hole or depression

428102, B32B 708, B32B 3500

Patent

active

058827560

ABSTRACT:
The strength of composite patches is improved over conventional bolted or bonded patches by including Z-pins in the patch/parent structure interface to provide a mechanical link with small stress concentration between the patch and the parent structure. In some cases, we achieve a stronger repair removing the pins to leave holes that fill with resin from the patch during the curing or bonding operation.

REFERENCES:
patent: 4560428 (1985-12-01), Sherrick et al.
patent: 4588626 (1986-05-01), Cologna
patent: 4808461 (1989-02-01), Boyce
patent: 4820564 (1989-04-01), Cologna
patent: 4824500 (1989-04-01), White et al.
patent: 4961799 (1990-10-01), Cologna
patent: 4987700 (1991-01-01), Westerman
patent: 5034254 (1991-07-01), Cologna
patent: 5186776 (1993-02-01), Boyce
patent: 5190611 (1993-03-01), Cologna
patent: 5207541 (1993-05-01), Westerman
patent: 5442156 (1995-08-01), Westerman
patent: 5466506 (1995-11-01), Frietas
Dastin, "Repairing Advanced Composite Materials," 9o3 Machine Design, 58(1986) Feb., No. 4.
Heimerdinger, et al., "Repair Technology for Thermoplastic Aircraft Structures," Advisory Group for Aerospace Development, ACARD, Oct. 1994, Seville, Spain.

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