Z-DIRECTION TAPE REINFORCEMENT FOR COMPOSITE LAMINATES

Award Information

Agency: Department of Defense

Branch: Navy

Contract: N/A

Agency Tracking Number: 3923

Amount: $242,000.00

Phase: Phase II

Program: SBIR

Solicitation Topic Code: N/A

Solicitation Number: N/A

Timeline

Solicitation Year: N/A

Award Year: 1988

Award Start Date (Proposal Award Date): N/A

Award End Date (Contract End Date): N/A

Small Business Information

FOSTER-MILLER, INC.

350 Second Ave

Waltham, MA 02254

United States

DUNS: N/A

HUBZone Owned: No

Woman Owned: No

Socially and Economically Disadvantaged: No

Principal Investigator

Name: Joseph S Boyce
Phone: (617) 890-3200

Business Contact

Research Institution

N/A

Abstract

COMPOSITE LAMINATES MADE FROM CONVENTIONAL GRAPHITE-EPOXY ARE PRONE TO DELAMINATION DUE TO IMPACT OR EDGE EFFECTS. SOME MEANS OF IMPROVING COMPRESSIVE STRENGTH AFTER IMPACT IS DESIRED. STITCHING IS ONE OPTION, BUT CAUSES DAMAGE TO IN-PLANE PROPERTIES AND REQUIRES ACCESS TO BOTH SIDES OF THE LAYUP. THE PROPOSED TECHNIQUE UTILIZES SHORT BORON FIBERS ORIENTED IN THE Z (OR THICKNESS) DIRECTION TO REDUCE STRAIN ENERGY RELEASE RATE AND RETARD DELAMINATION. BORON FIBERS WILL BE INSERTED USING A SPECIALLY DEVELOPED REINFORCING TAPE. THE TECHNIQUE IS COMPLETELY COMPATIBLE WITH EXISTING PROCESSING METHODS AND CAN BE PERFORMED ON-TOOL. PROPOSED PHASE/I EFFORT CONSISTS OF TAPE DEVELOPMENT, PROCESSING AND STRUCTURAL TESTING OF SAMPLE Z-DIRECTION REINFORCED COMPOSITE LAMINATES.

* Information listed above is at the time of submission. *

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Z-DIRECTION TAPE REINFORCEMENT FOR COMPOSITE LAMINATES