Integrally 3D Woven/3D Braided Composite Joining Elements For Ship Construction

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$70,000.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
N65538-04-M-0118
Award Id:
70094
Agency Tracking Number:
N041-093-0325
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
109 MacKenan Drive, Cary, NC, 27511
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
030936335
Principal Investigator:
MansourMohamed
Chief Scientific Officer
(919) 481-2500
mansourm@3tex.com
Business Contact:
AndrewWatson
Controller/Corp Secretary
(919) 481-2500
watsona@3tex.com
Research Institute:
n/a
Abstract
GFRP cored panels are common in current shipboard structure design. Robust and practical means of joining these and other composite materials to one another and to any substructure are critical to forming large structures. 3TEX will develop and test joining methods and materials based on 3WEAVETM, and 3BRAIDTM, formation of integral shaped fabric preforms. "Butt" and "T" joints formed by insertion of panel edges into pockets in, "H", "T", and "double T" union elements. Investigation will examine rigid, pre-impregnated, and dry preforms. Use of the dry preforms allows the easiest storage by employing subsequent infusion of the joint preforms with the panels in-place, to bind all elements together. Variants that provide through-joint holes for fastening to sub-structures will also be examined. Further, composite insert and hard points, which exploit the increased through thickness fiber, and thread strengths of "very" thick single ply fabric preforms will also be demonstrated. The strengths of inter-panel, and hard point joints will be gauged against existing methods. The cost, and practicality of these methods and materials will be assessed. It is expected that these methods will prove both more practical, more robust, and lower cost than current methods.

* information listed above is at the time of submission.

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