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Insole fatigue tests

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  • Insole fatigue tests

    Dear Biomch-L subscribers:
    I am trying to test the fatigue effect on a Polyurethane foam to be used
    as an insole.
    In the literature review I have found some interesting papers by D.J.
    Pratt et al.
    My questions are:
    1. Is there any additional reference about how long should an insole
    maintain its absorption and cushioning properties?.
    2. If so, in which way it could be tested?.
    My goal is to define a testing procedure to test a shoe incorporating an
    insole by means of an Instron machine, controlling the applied load and
    establishing the number of cycles (steps will be simulated by means of a
    rectified sine wave).
    Thanks in advance,
    Arturo Forner
    Instituto de Biomecanica de Valencia
    Valencia. Spain.
    Tel. + 34 96 1366032
    Fax. +34 96 1366033

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