NDLI: Effects of method of loading and specimen configuration on compressive strength of graphite/epoxy composite materials

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Effects of method of loading and specimen configuration on compressive strength of graphite/epoxy composite materials

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lisagor, W. B. Clark, R. K.
Copyright Year	1980
Description	Three test schemes were examined for testing graphite/epoxy (Narmco T300/5208) composite material specimens to failure in compression, including an adaptation of the IITRI "wedge grip" compression fixture, a face-supported-compression fixture, and an end-loaded-coupon fixture. The effects of specimen size, specimen support arrangement and method of load transfer on compressive behavior of graphite/epoxy were investigated. Compressive stress strain, strength, and modulus data obtained with the three fixtures are presented with evaluations showing the effects of all test parameters, including fiber orientation. The IITRI fixture has the potential to provide good stress/strain data to failure for unidirectional and quasi-isotropic laminates. The face supported fixture was found to be the most desirable for testing + or - 45 s laminates.
File Size	2684006
Page Count	48
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800013919
Archival Resource Key	ark:/13960/t9m37n16r
Language	English
Publisher Date	1980-04-01
Access Restriction	Open
Subject Keyword	Composite Materials Specimen Geometry Thickness Compression Tests Failure Modes Strain Gages Graphite-epoxy Composites Fiber Orientation Compressive Strength Loads Forces Stress-strain Diagrams Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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