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Behavior of fibers in cumulative extension cycling

Authors

  • J. W. S. Hearle,

    1. Fibers and Polymers Division, Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, Massachusetts
    Current affiliation:
    1. University of Manchester, Institute of Science and Technology, Manchester, England
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  • H. R. Plonsker

    1. Fibers and Polymers Division, Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, Massachusetts
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Abstract

The cumulative extension cycling behavior is a combination of the effects of elastic recovery, viscoelasticity, and fatigue. The purpose of this research was to examine the elastic recovery aspects of the behavior. A model behavior idealized to include only elastic recovery was assumed and a computer program written to simulate cumulative extension cycling behavior based upon this idealized model. Tests were performed with an apparatus which removed the sample's slack after each cycle. A comparison of the experimental and computed results yielded an improved understanding of the elastic recovery aspects of the cumulative extension cycling behavior.

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