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    Practical Applications of Variable Rate Impact Testing of Reaction Injection Molding Urethanes

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    Instrumented variable rate impact testing has been found to be an effective analytical tool for identifying the important load-deflection response of reaction injection molding (RIM) materials. Molded parts of varying geometries can now be tested using many impacting probes or tups over a wide impacting rate range and temperature region. Complete load-deflection analysis allows the engineer to formulate, design, process, and assemble a product having improved, reliable functional performance.


    impact, reaction injection molding materials, thermoplastic and thermosetting plastics, composites, reinforced plastics, variable rate testing, strain rates, temperature ranges, fracture/failure mechanics, evaluation, urethanes

    Author Information:

    Driscoll, SB
    Technical marketing consultant, Rheometrics, Inc., Union, N.J.

    Committee/Subcommittee: D11.45

    DOI: 10.1520/STP28511S