Postbuckling behavior of graphite/epoxy cloth shear panels with 45º-flanged lightening holes
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Authors
Herman, Richard John
Subjects
Laminate
Composite material
Shear loading
Hole reinforcement
Composite material
Shear loading
Hole reinforcement
Advisors
Bank, Milton Harold
Date of Issue
1982-03
Date
March 1982
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
An experimental and finite-element analysis was performed on graphite/epoxy cloth plates
subjected to static shear loading. Two specimens were tested to failure for each of three configurations: a solid panel, a panel with an unreinforced hole and a panel with a 45°-flanged hole. Both a static nonlinear analysis and a bifurcation-buckling analysis were performed for each of the panel configurations. The 45°-flange reinforcement technique for cutouts in shear webs was found to be well-suited for use in non-buckling, graphite/epoxy cloth designs. However, an alternate hole-reinforcement technique is required for designs where buckling is allowed.
Type
Thesis
Description
Series/Report No
Department
Aeronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.