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Evaluation of Braided Stiffener Concepts for Transport Aircraft Wing Structure ApplicationsBraided composite materials have potential for application in aircraft structures. Stiffeners, wing spars, floor beams, and fuselage frames are examples where braided composites could find application if cost effective processing and damage requirements are met. Braiding is an automated process for obtaining near-net shape preforms for fabrication of components for structural applications. Previous test results on braided composite materials obtained at NASA Langley indicate that damage tolerance requirements can be met for some applications. In addition, the braiding industry is taking steps to increase the material through-put to be more competitive with other preform fabrication processes. Data are presented on the compressive behavior of three braided stiffener preform fabric constructions as determined from individual stiffener crippling test and three stiffener wide panel tests. Stiffener and panel fabrication are described and compression data presented for specimens tested with and without impact damage. In addition, data are also presented on the compressive behavior of the stitched stiffener preform construction currently being used by McDonnell Douglas Aerospace in the NASA ACT wing development program.
Document ID
19960021801
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Deaton, Jerry W. (NASA Langley Research Center Hampton, VA United States)
Dexter, H. Benson (NASA Langley Research Center Hampton, VA United States)
Markus, Alan (McDonnell-Douglas Aerospace Long Beach, CA United States)
Rohwer, Kim (McDonnell-Douglas Aerospace Long Beach, CA United States)
Date Acquired
August 17, 2013
Publication Date
October 1, 1995
Publication Information
Publication: Mechanics of Textile Composites Conference
Volume: Part 1
Subject Category
Composite Materials
Accession Number
96N25076
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19960021796Collected WorksMechanics of Textile Composites Conference
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