NDLI: Influence of impact damage on carbon-epoxy stiffener crippling

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Influence of impact damage on carbon-epoxy stiffener crippling

Content Provider	NASA Technical Reports Server (NTRS)
Author	Jegley, Dawn C.
Copyright Year	2010
Description	NASA, the Air Force Research Laboratory and The Boeing Company have worked to develop new low-cost, light-weight composite structures for aircraft. A Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) concept has been developed which offers advantages over traditional metallic structure. In this concept a stitched carbon-epoxy material system has been developed with the potential for reducing the weight and cost of transport aircraft structure by eliminating fasteners, thereby reducing part count and labor. By adding unidirectional carbon rods to the top of stiffeners, the panel becomes more structurally efficient. This combination produces a more damage tolerant design. This document describes the results of experimentation on PRSEUS specimens loaded in unidirectional compression subjected to impact damage and loaded in fatigue and to failure. A comparison with analytical predictions for pristine and damaged specimens is included.
File Size	3473552
Page Count	22
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20100033781
Archival Resource Key	ark:/13960/t6062jd46
Language	English
Publisher Date	2010-09-22
Access Restriction	Open
Subject Keyword	Composite Materials Epoxy Matrix Composites Low Cost Weight Reduction Military Technology Rods Composite Structures Impact Damage Research and Development Pultrusion Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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