STP327

    Compression Testing of NOL Rings

    Published: Jan 1963


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    Abstract

    The expanding need for structures that can be used in compression, or for both tensile and compressive loading applications, requires methods for determining the properties of filament-wound structures. Although much work has already been done in the area of tension, very little is known about the compressive testing methods and compressive properties of such structures.

    This paper describes test fixtures for determining the compressive properties of unidirectional glass roving reinforced plastics. The first of these fixtures is quite simple and inexpensive and provides an excellent screening test, with good qualitative results, for a large number of specimens. The buckling problem associated with any compression test is discussed and the methods of circumventing it in these test fixtures are described.

    Ring thickness and rate of loading, and their effects upon the test results, are discussed. Data presented show that the role played by the resin in a filament-wound composite structure is much greater when the structure is loaded in compression than when the loading is of a tensile nature. The compressive mode of failure is discussed.


    Author Information:

    Elkin, Robert A.
    A Division of Telecomputing Corp., San Diego, Calif


    Paper ID: STP44424S

    Committee/Subcommittee: D20.70

    DOI: 10.1520/STP44424S


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